How to Solve Quadratic Equations by Factoring (NancyPi)

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Published on May 15, 2018 by

MIT grad shows how to solve any quadratic equation by factoring. To skip to the shortcut trick, go to time 6:11. Nancy formerly of MathBFF explains the steps.

Follow me on Instagram! https://instagram.com/nancypi
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The shortcut trick ("The Magic X") helps you factor any tough quadratic that doesn't begin with x^2 but instead begins w/ 2x^2 or 3x^2, or 4x^2, etc, so you can then solve.

1) IF QUADRATIC STARTS WITH X^2: It's faster to use the normal method for factoring in this case: trial and error. Ex: x^2 + 4x - 12. Find 2 numbers that multiply to the last number, -12, AND that add to the second coefficient, positive 4. First make a list of all pairs of #s that multiply to -12. Then check which pair also adds to 4. Write factors & solve by setting each = 0. Solve for x.

2) IF QUADRATIC STARTS WITH 2X^2 OR 3X^2 OR 4X^2, ETC:
A) First check if leading coefficient (2 or 3 or 4, etc) is an overall constant you can factor out of every term. If it is, factor it out first, then use Method #1 above to factor the X^2 expression that's left. Set factors = 0 & solve.
B) If a constant can't be factored out evenly from every term, it'll be faster & easier to use shortcut "magic X" method instead of Method #1. See it explained at time 6:11 in video. Set factors = 0 & solve.

For more of my math videos, check out: http://nancypi.com

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398 Comments

  • Emxguy99 4 years ago

    can you upload series?

  • Holbrook-Gold Films 4 years ago

    Nancy!

  • Slayerx 4 years ago

    I’m fourth …
    Nice way of explaining Nancy . Helped a lot when I was a kid .. lol

  • Scooby Doku 4 years ago

    Thanks for starting to upload a lot of them together. Are you ok though? In the videos for some reason you look like you are ill or maybe it’s just me?

    • Scooby Doku 4 years ago

      Skyler B I was just worried as she looked pale compare to videos I had seen her in. That’s good to know!

    • Y C 4 years ago

      Scooby Doku naruto is better than saskue

    • Scooby Doku 4 years ago

      Y C Maybe but sasuke is cooler 😎

    • Y C 4 years ago

      it is ur opinion but I never got how someone can like saskue he is so arrogant, btw do you watch boruto?

    • Scooby Doku 4 years ago

      Y C Yep

  • Fabio A Cuevas 4 years ago

    Thank you very much. Greetings from Colombia!!!

  • ikolatasii dsdd 4 years ago

    Hahahah you are the guardian angel of finals week.

    • Joospinch The Fourth 3 years ago

      @moaiad alsinawi i see what you did there xD

    • Jordan Ochoa 2 years ago

      ikolatasii dsdd – did you do good

    • Franck's Notes 2 years ago

      Can I be her sidekick? She inspired me to make videos as well

    • Franck's Notes 2 years ago

      Trap I don’t think sidekick is the right word, what would be the right word 🤔

    • Cardel Montgomery-Vielmo 2 years ago

      facts

  • axel dego 4 years ago

    How write ??? I don’t understand hahahaha

    • Robin Vincent 4 years ago

      I have done these over and over again due to my learning style. The X method is much easier for the difficult quadratic equations. Good Luck!

  • Cr remedies 4 years ago

    Can you go over some trig for me law of sin cos tan i miss your old video’s

  • Jovante Anderson 4 years ago

    Keep going, your fans/students still love your dedication 👍. Btw, I’m all the way from Jamaica.

    • Zenithial876 4 years ago

      🙂

    • Samuel C. 4 years ago

      Me too

    • trey_buck_71YT 3 years ago

      Awesome bro I’m from the US 😥

  • Achraf Jellal 4 years ago

    Can you do a linear algebra series ?

  • Abdullah Imran 4 years ago

    Nancy 😘

  • Manuel Gopan 4 years ago

    Clusterfuck

  • Oscar balderas ponce 4 years ago

    You’re back!!!

  • Oscar balderas ponce 4 years ago

    Thank you!

  • justin wulf 4 years ago

    I dont even take any math class and i still like this videos its nice to brush up some skills

  • Nomon Munir 4 years ago

    back in the day i had a hard time doing them the right way around….now she’s doing them inverted!??! mind blown

    • Lito Bandilla 4 years ago

      Nomon Munir she just mirror it after writing through the glass

  • Juliano Ghaly 4 years ago

    Glad to see you’re back to uploading again 👍 I remember watching this a couple of years back, ahh the nostalgia XD

  • Andy Moposa 4 years ago

    Tanks miss
    Tanks teacher
    Saludos desde Ecuador gracias por las clases

    • Measie Rodriguez 4 years ago

      Andy Moposa 🇪🇨🇪🇨🇪🇨

  • Y C 4 years ago

    Thanks miss

  • MyWyze 4 years ago

    Glad you were able to get all your old videos back! I hope to see you continue to with new content!!

  • zed zeno 4 years ago

    I could not solve this one using this method, (9r^2-6r+1) =0

  • amty 4 years ago

    N.A.N.C.Y

  • Isabel Ayala 4 years ago

    good video

  • Michael Sheldrew 4 years ago

    Good job!

  • rotartlifnI 4 years ago

    How do you know when to use the AC method?

  • Robin Vincent 4 years ago

    I am still with you Nancy. I have and will continue to share NancyPi with students.

    • NancyPi 4 years ago

      Thank you, Robin

  • Wesley Barnes 4 years ago

    Thanks, and so pretty..

  • 「Za Hando」 4 years ago

    i clicked on the wrong link. thought this was minecraft lol Xd

  • Sam Shemmings 4 years ago

    Jesus that was helpful

  • conner mooter 4 years ago

    Thank you for making these videos, they are incredibly helpful! I’m studying for the GRE and I haven’t done this kind of math in probably about 6 years. You are really good at teaching and any student would be lucky to have you!

  • Ian Abbott 4 years ago

    blackpenpinkpen ♡

  • Day 4 years ago

    I love your math stuff! Thank you so much Nancy! I recommend your videos to all my friends

  • Ian Thomas 4 years ago

    The whole time i’m baffled about her writhing math switch backwards so we could under stand it on our side of the glass.. thank you for your many talents.

    • Ian Thomas 4 years ago

      BrazeyMatic … Oh. I see now. Prob the same reasons my mathematics skills are poor.

  • iggy 4 years ago

    this chick talks so slowly

    • Joshua Melton 4 years ago

      madalite and helps soo many

  • Akiemgokuh Arumpac 4 years ago

    i love the way you teach.

  • Naeomie Ruth 4 years ago

    what happened to mathbff

  • Nya Emmanuel Titang 4 years ago

    That is nice

  • 360 pp 4 years ago

    You’re a star Nancy

  • Paul Anthony Luarez 4 years ago

    ka gwapa mo dzai❤❤❤

  • ᴢɪᴋᴇʏʏ 4 years ago

    The video is actually reversed positioned. So if the editing was not performed, the writings would’ve been backwards

  • Joris Nanne 4 years ago

    You saved me once again, thanks!

  • Ashlekie Goldie 4 years ago

    what if the formula are all on numbers with 0

  • Romey Zulu 4 years ago

    You’ve made this so simple to understand. Thanks

  • Joshua Melton 4 years ago

    Thank youuu so muchhh!!! ❤️❤️❤️

  • Jai670 Padhi 4 years ago

    Exactly as I was taught in school .. back in 1977-78! Thanks Nancy for reviving memories..

    • trey_buck_71YT 3 years ago

      I’m in high school…. My goal graduate in 2022 (I’m 14)

    • Masha Warnken 2 years ago

      I’m in 6th grade 😀

  • Katrina Lovel Dacula 4 years ago

    THIS IS SO HELPFUL THANK YOU 🙏🏼

  • Lacey Vera 4 years ago

    Before I played this video the ad was apink’s new song or mv 💓

  • Fred 4 years ago

    OMG you kinda sound like Nancy from Momoland xD

  • EPIC RANDOMS 4 years ago

    You are very hot 🔥💃

  • ProJanitor 4 years ago

    If you can’t even figure out how she’s writing for us to see, you shouldn’t watch this. Go watch Keepin’ up wit da Kardashians, idiot.

    • trey_buck_71YT 3 years ago

      *with *the…. idiot

  • ARA BELS 4 years ago

    Nancy Binay

  • Ravi Arora 4 years ago

    How do you write backwards

  • Dr. Remulack 4 years ago

    Why didn’t she finish at 6:06?

  • Wran Ther 4 years ago

    I do not ever recall being taught your “X” factor trick Nancy! TYVM 🙂

  • Aidan Forden 4 years ago

    This helped me more than Khan Academy. Thank you.

    • Warren Kirkpatrick 2 years ago

      Sam Church who is Sal?

    • rin k 2 years ago

      @Warren Kirkpatrick “sal khan” or salman khan is the founder of khan academy.

    • KimoSnap 2 years ago

      @rin k and hes the shit

    • HAS 2 years ago

      cap

    • ariel 2 years ago

      don’t mess with khan academy bois

  • UNKNOWN_FAN 4 years ago

    thank you! 😀

  • Gunnar Jensen 4 years ago

    Hi

  • Lazeon HD 4 years ago

    what if it has a leading co efficient?

  • Frank - no mustard 4 years ago

    You are a math princess long may you reign!

  • Vladimir Vakunov 4 years ago

    I didn’t get, how do you solve for x in the second example, when you’ve got that factor of 2 on the left, it has to go somewhere apparently ?

    • Sedias Makarange 3 years ago

      that one was supposed to be explained further

    • aizawa 3 years ago

      i think that’s just how you would write down the answer because if you plug in the original equation into math papa, that’s the same final answer the calculator gives you

  • Hamish Martineau 4 years ago

    AAAAA THANK YOU SO MUCH!!!!
    i was so stuck on what to do when there a number in front of the x2.
    thank you!!!

  • Jorge Villarejo 4 years ago

    Smart ass females in many level but fuck I still don’t get it. 😔

  • fede alberto 4 years ago

    the big X technique is wrong because if x= 1/3 and the problem is 3x(squared)+14x-5=0 if you change the x for 1/3 you would get 1+14-5=0?????????

  • Subhan Shakeel 4 years ago

    Can we use the 3rd method to solve the 2nd question ?

  • John Malmstein 4 years ago

    Can you help me with
    x⁴+x²+4x-3=0

  • Valery Brouard 4 years ago

    Nancy, you’re my hero

  • Abdur rab 4 years ago

    thanks for the help

  • Arnaud Bristol 4 years ago

    Wow!! SO Clear simple… J’aime <3

  • Akanksha Sarwan 4 years ago

    Thankyou for the video

    • trey_buck_71YT 3 years ago

      Put a space between thank and you.

  • Neal Cole 4 years ago

    To watch the a coefficient “3” at 6:36

  • Tajamul sir 4 years ago

    good work #Tajamulsir. dear i need the pdf book of class 10th math which you taught.

  • Muqtada abdulzahrah 4 years ago

    thanks beautiful

  • DAVID Laramee 4 years ago

    I watch all your videos. I love your work. Love the Magic-X, it saves me tons of time, but realized it will not work on some equations. Example, cannot use it on (p^3+2p^2q-24pq^2). It’s just something to remember during the exam.

  • First name Last name 4 years ago

    Thanks, you actually showed me what to do, unlike Sal of Khan Academy!

    • sachit infinity 2 4 years ago

      What are you talking about, khan academy is really good. You must have watched the wrong video. Just think about it, its khan acedmy

  • Vanessa 4 years ago

    Thank you so much

  • Matthew West 4 years ago

    I think, out of all the maths channels, NancyPi is by far the best! She talks through it step by step which allows you to actually keep up and understand it. Most maths channels dive straight in, go far too fast and don’t talk through it step by step.

    Keep up the good work!

  • Cari 4 years ago

    Cool

  • MD sarfaraz khan The 4 years ago

    I’m Indian thanks

  • krisqueen xoxo 4 years ago

    Thank youuuu guuuurl you helped me so bad!

  • Flapper F 4 years ago

    Hi, Thank you for your great videos
    Can you please solve this
    4p^2-q^2+2p+q

  • kim 4 years ago

    TYSM

  • Ariola Gandhi 4 years ago

    hey fancy nancy, helped me lots!! thanks for this videos

  • Ihsanullah shaikh 4 years ago

    very nice

  • Sarkis Karalian 4 years ago

    Omg you are so fucking hot/helpful

  • tred bag 4 years ago

    thank you nancy

  • Gedenir Fiorese 4 years ago

    Your videos are amazing. Easy to follow through. They are helping me a lot to review factoring for college algebra.

  • Ricky Russo 4 years ago

    Could not figure out how to do 3n^2 + n – 2 =0

  • Shreyan Chetia 4 years ago

    This Video was really helpful. Keep Up the Good Work👍

  • Be happier 4 years ago

    Can you send to me your videos about logarithm please

  • S.a.H 4 years ago

    wait hold up fam, youre writing backwards?!? bloody hell is there anything u cant do?

    • trey_buck_71YT 3 years ago

      You’re

    • trey_buck_71YT 3 years ago

      Can’t

    • trey_buck_71YT 3 years ago

      And you

  • John Doe 4 years ago

    Nancy, you are the best.

    • Cheyanne wolfhard. 4 years ago

      Fr tho.

  • Itz_AZ 4 years ago

    Life Saver, Thank you so much

  • Joel Beaton 4 years ago

    tthanks for the help nancy

    • trey_buck_71YT 3 years ago

      Only one T in thanks.

  • Henok Abebe 4 years ago

    i was very nice .it was so helpful thank you

  • Ernesto Caudillo 4 years ago

    Babe help will it affect me if I’m writing it back Ward’s n my test help plzzz cuse I’m doing it the way Im watching and plzz write out every step to other then that your good???

    • trey_buck_71YT 3 years ago

      *please

  • synthia yi 4 years ago

    we have a trick called “tic tac” so it’s basically like tic tac toe and it’s really fun to do. you should do a tutorial for that next time :).

  • Owen Bell 4 years ago

    How tf you write backwards so good

  • FuturedPanda Hi 4 years ago

    Wow, she is really good at writing backwards

  • Crystal Crystal 4 years ago

    This is really great! I have viewed so many videos trying to find an easier way and I thank goodness that I found this video! thank you so much!

    • Samantha Bloodsaw 2 years ago

      Crystal Crystal bi weekly

    • Samantha Bloodsaw 2 years ago

      Crystal Crystal once month

    • Samantha Bloodsaw 2 years ago

      Kiwisser

  • Katie D 4 years ago

    Still confused on how she is writing backwards or something

  • Mohamed Akif 4 years ago

    Beatufful teacher’s

    • trey_buck_71YT 3 years ago

      Spelled beautiful wrong

  • Ayan King 4 years ago

    U are osm

    • trey_buck_71YT 3 years ago

      What?!

  • david siame 4 years ago

    pliz come we exchange wit our math lecturer

    • trey_buck_71YT 3 years ago

      Get a DICTIONARY!!!!!!

  • world epic 4 years ago

    thanks for the trick nancy

  • Luis Davi Girão 4 years ago

    thank you

  • Rohit Rana 4 years ago

    Nice

  • Naweed Babakarkhail 4 years ago

    Really important to understand this especially the one with coefficient in front of x squared cuz I forgot how to do that and lost many marks in future calc courses. Easy to understand but u gotta make sure you dont forget it

  • Sammy Sole 4 years ago

    Great video. Easy to follow. Thank you.

  • Thomas Vail 4 years ago

    You are a gift to the world

  • The Grash 4 years ago

    How r u writing??

    • trey_buck_71YT 3 years ago

      *are *you

  • Michael Olivares 4 years ago

    You are literally a college angel

  • Hamstergnstr 4 years ago

    After two days of frustration, you saved me. I couldn’t understand how the teacher was getting her answers and the books not really making it too clear. You are amazing!!! Thank you!!!!

  • Kender 4 years ago

    using that X method, you are a genius. Never knew you could do it that way….thank you!

  • Jhonny Perez 4 years ago

    I need to learn algebra 1 all over again and I have 7 days to do so. THANK U

    • trey_buck_71YT 3 years ago

      *you

  • shermaine 4 years ago

    Thank you!!

  • dakiro222 4 years ago

    thanks, very well explained and clear.

  • kamel hatem 4 years ago

    Thans a million teacher!!!

  • Anje Williams Manning 4 years ago

    Thanks for your help 🙂

  • jon Morris jon morris 4 years ago

    Yes, it does help although I think from a cognitive Psychology point of view there are a few too many different things to remember. However the ‘MAGIC X’ does CHUNK the info. together in accordance with the basic premise and principle of ‘CAPACITY AND CHUNKING’ which usually is fairly applicable in most areas of memory usage or RAM(STM) in everyday life.
    I’m mot meaning to be critical though but you may have overlooked certain things from a teaching point of view (PERHAPS).

    This particular equation can actually be solved by removing the x’ S altogether and combining it with the presumption that you are working in base 10 numbers.
    So, the ANALOGY if you were ,say, a mathematical artist would be that you make use of a circle then multiply 3 by neg.5 equalling 15. Then step 2 would be to go backwards using your end point which is neg.5 or even 5 if you swap the number from either side of the equals sign and you then multiply 14 by neg.5 which gives you neg.75.
    The next step is to make the connection between your first operation which was 3 multiplied by neg.5 (keep in mind that this is your answer and can either be your lock or key depending on how you think about it.
    Ok, now you have subtracted one answer from the other you have your lock and key. The key being the answer which is neg.5 and the lock being the number configuration. Sorry I meant the other way about with the lock and key ANALOGY.
    Now you have x =5.
    Now, I hear you ask ok smart arsed what about c=1/3 mmm good question !!!
    Again the basics are that we are working in base 10 and not Binary or some shit like that. So, where do we get 1/3 from?

    Next step: Take you middle number which is 14x and this time apply the mirror image concept or the reverse lock and key concept (BTW, these concepts are my own inventions thank you!) oh, ye and they mean pretty much the same thing at an appropriate level.
    So, this time INSTEAD of MULTIPLYING your two numbers together you DIVIDE
    (MIRROR IMAGE OPERATION TO MULTIPLY OR LOCK AND KEY REVERSIBILITY THEORY)
    them.
    Next step: 14 ÷ by The main constant which is 3.
    So, what is 14/3 ; well, it is 4.6666R or 4 and 2/3.

    mmm so what I hear you ask….
    We can see that it is almost 5 but not quite because you have to take away 1/3 to get your answer.
    Finally, from the functional aspect of this equation you know have two answers for x without even using them. You have x = 1/3 and x =5.
    Few….that took a while….

    Now, plz allow me to elaborate and use PHILOSOPHY or just plane ANALOGY as I did before.

    Do you REMEMBER me using the circle as a starting point which could be easy for visual thinkers to think about and be able to mix Geometrical calculations with algebraic calculation.
    ok, what is a FACTOR? A FACTOR is a part of something … anything really but in this case a CIRCLE.
    SO, Let’s think a bit more about the circle…. Try to IMAGINE the circle has 100 degrees rather than 360 degrees. This way you can DIVIDE it up more easily. OK, Do, remember you SUBTRACTED NEG. 75 FROM POSITIVE 70 and you cane out with one of your results which was x=5 right? ye, it’s right so bare WITH me.
    By taking 75 out of 100 parts of the circle away you are left with 25 parts.
    mm confusing right?
    NOPE, it’s not …. !

    Look back at the original equation which was 3x^+ 14x -5 = 0

    Now, remember there is one thing I have not yet EXPLAINED COZ I’M A CRAZY INSOMNIAC with PRETTY BAD ADD and my AT AN capacitor hardware leaks pretty fast.
    (electronic computer science

    being used here as an ANALOGY of my thinking) .
    APOLOGIES, WELL KINDA…

    So, where do you get one third of a CIRCLE from?

    sTake another close look at the EQUATION : 3X^ +14x -5 =0

    EARLIER , I FORGOT TO INCLUDE SOMETHING TO THE POWER OF 2 AND IN THE ORIGINAL EQUATION X IS SQUARED OR X MULTIPLIED BY X.
    NOW I have pretty arrogantly claimed – FUCK using the x’ s tighter
    yeh, I have.. thanks ur honour
    objection over rules on grounds of as yet unsubmitted evidence.

    It is common in algebraic MATH…. SSSSSSSSS (I’M English so I don’t know why the Americans use the annoying word MATH which is physically more difficult to say … Try it out if you don’t believe me..

    THANKS!!!!!!!!

    Sorry, tiredness and ADD getting the better of me now….
    Oh ye, rearrange your SQUARED x and place it on the 3. NOW you get 3 x3 or 3 SQUARED.
    So, now you’re EQUATION becomes : 9+14 -5=20

    PRETTY SIMILAR TO 25 PARTS OUT OF A HUNDRED RIGHT EHICH IS ANALOGOUS TO X=5

    WE WRONG !

    THE FIRST ANSWER WAS X=5,
    ok, think of it this way, 14 ÷3 = 4 and 2/3 WHICH means you have x = 1/3
    Apply this now to the circle……

    THE 2ND ANSWER IS X=1/3

    14 +9 -5 =20 parts in 100 which is a fraction that can be reduced to 1/5 and if you look at a CIRCLE you have used 70 degrees and for visual purposes this is 9
    MULTIPLIED BY 5 + x ^ (25 degrees)

    IF YOU KNOW THAT A CIRCLE IS 36P DEGREES AND YOU TAKE OUT 45+25 DEGREES WHICH IS EQUAL TO 70 DEGREES THEN YOU KNOW THAT X CAN ONLY BE 360 DEGREES MINUS 70 DEGREES WICH IS 5 TIMES LESS EHICH AGAIN MEANS X IS EQUAL TO 5.

    APPLY THIS TO A CLOCK AND TIME : LET’S START AT 12 O’CLOCK … 70 DEGREES OF THE CLOCK CIRCLE EILL MAKE IT 12.15 pm or AM . WORK BACKWARDS NOW FROM 1PM/AM SO, YOU GET 12.45 PM/AM . Therefore, in this case your missing part or FACTOR can only be 25% of the circle/ 70 degrees of the circle/15 minutes ; or MORE IMPORTANTLY X=5.

    Ok, but if you’re still reading this you are still waiting for me to explain x=1/3 and how this relates to a circle/time/ or degrees of a CIRCLE.
    IF YOU DO the following calculation applied to a time CLOCK you get: 12pm/AM + 17.5 MINUTES multiplied by
    4 it will take you to 70 MINUTES past 12 or Maybe I should say 10 past 1 O’CLOCK
    Now ,I’m sure we all realize that we have exceeded the clock circle by you guessed it … YUP … 60 DEGREES clockwise

    So if 60 degrees is 2/3 times LESS Time on the clock face than what we had before which was 12pm/am to 12.15 pm or AM
    Another way to calculate this is to say 90 degrees past 12 p.m. or AM is 12.15 and is 90 degrees as OPPOSED TO 60 degrees which is equivalent to 12.10 pm or AM….

    ok, so , now you have a visual picture of what is roughly going on so I WILL throw in another calculation for you….
    10/15 can be simplified to 2/3 as a fraction

    Let’s go back ack to just a plain CIRCLE ….. . If we already know that a CIRCLE is 360 DEGREES THEN we know that to get from 12 O’CLOCK to 10 MINUTES MULTIPLIED BY 6 MINUTES to get to you’re previously given time of 1 O’CLOCK!

    NOW LET US IMAGINE that instead of 90 degrees of the circle coloured in by say a BLUE pelt top pen or whatever we now have only 60 degrees coloured in which is exactly 1/5 if the circle… mmmm interesting right?!

    Ok, now let’s convert the DEGREES OF THE CIRCLE, THE TIME IN MINUTES IN THE CLOCK AND THE ACTUAL EQUATION ITSELF AND COMPARE THEM :
    With the time let’s substitute in the EQUATION numbers or should I say FACTORS ?…. ..
    x=5 is the same as 15 MINUTES past 12 if you are trying to work out the DIFFERENCE BETWEEN 12.15 AND 1.00 WHEN IT IS ALREADY 1.45….
    12.17.5 MINUTES is the same as x = 1/3 if you already see that the 2nd time you look at the clock it is 1 hour and 10 minutes PAST 1 O’CLOCK…
    REMEMBER THAT A TIME CLICK OR LET’S SAY KITCHEN CLICK IS DUVIDED UP INTO EVEN NUMBERS TOTALLING 12 SO WGEN YOU SEE 1/4 PAST 12 OR 12.15 MINUTES ON THE CLOCK THAT THIS CAN BE CONVERTED INTO 25 WHEN YOU ARE DEALING WITH GROUPS OF 1OS UP TO A 100. SO, 15 PAST 12 ON THE KITCHEN CLOCK REALLY MEANS 25 % IF WE ARE DEALING WITH NUMBERS ON A USUAL BASIS…
    LET’S GO TO DEGREES 90 DEGRRES ON THE CLOCK IS 15 MINUTES BUT WHEN YOU CALCULATE NUMBERS MOST OFTEN IN BASE 10 IT ALSO BECOMES 25 %

    NOW LET’S RETURN BACK TO THE EQUATION APPLYING LOCK AND KEY REVERSIBILITY THEORY (MY OWN THEORY AND YE I KNOW I MENTION IT AGAIN IN CASE SOME CHEEKY FUCKER TAKES IT OFF ME; I HAVE LAWYERS YO BIATCHES!)

    OK LET’S START AGAIN ON THE PREMISE OF 100….
    OUR EQUATION IS 14 +3 = 17

    ON THE CLOCK THIS IS 17.5 MINS
    Why ? BECAUSE 0.5 is 1/5 of 2.5 MINUTES WHICH after the clock has gone round 4 more lots of 17.5 MINS leads you to 10 past 1 O’CLOCK

    That means that 10 pat 1 is two thirds too much or 4 times the MINUTES after the given hour or 360 Degrees.

    But remember a kitchen clock works in 12s not the usual units ,tens etc if base 10

    now, 14+3 = 17 and remember that 3 is our main constant in this equation… So, 3+14 +5 if you flip the neg 5 FROM one side of the equals sign to the other you get 0 which is 1 O’CLOCK or 360 Degrees but…

    REMEMBER THAT 100 -14- 9 REMEMBER IT IS 9 NOT 3 BECAUSE YOU HAVE REARRANGED THE SQUARE NUMBER FROM THE X ONTO THE 3 (3 MULTIPLIED BY 3 =9) or to REARRANGE IT ANOTHER WAY 100 -(9 -14 =5) AND THAT CAN BE CONVERTED BACK TO 3 ^ +14 = 5 … NOW THROW IN X = 5 , SO 3 X 5 = 15 + 14 X 5 = 70 , 15 + 70 =85

    CHECK 3+14 = 5 Uh , no it
    doesn’t … BUT it does if you add
    3 MULTIPLIED BY -5 =15 +85 from the value of x^ +x MULTIPLIED by 14

    Then x=5

    x= 1/3 IF YOU DO 14+15 =29 ×5 = 147 MULTIPLIED BY X =1/3

    • jon Morris jon morris 4 years ago

      @Dylan Quintal I was probably quite spaced out but it is true that you don’t need the xs

  • Anthony Jackson 4 years ago

    Saved my LIFE! Thank you!

  • Juma Ally 4 years ago

    thank you so murch for your lecture.

  • mike henry 4 years ago

    You are a god amongst men ……bless you ..

  • S H 4 years ago

    Thx ma’am.

  • trialnterror 4 years ago

    How would I use this in the real world?

    • MGFC Ron-a-roni 4 years ago

      trialnterror Become a Math Teacher 🙂

  • Akhil Apple 4 years ago

    Nancy I love u

  • C MM 4 years ago

    Definitely helps, thank you!

  • U raaxee Caqligaaga 4 years ago

    Thank u Nancy and GOd bless you. But can I apply this method to all quadratic equations or there are some that I can’t do this way? Thank you

  • Michael's 4 years ago

    You are the best!Thanks!

  • ayman mazen 4 years ago

    Very good

  • Wojciech Jacek 4 years ago

    What about negative quadratics?

  • Victor Rdz 4 years ago

    What if (7x+9)^2=64

    • Enoch Kandiah 3 years ago

      Set: 7x+9 = 8

      And solve for x.

      7x=-1
      x=-1/7

    • Enoch Kandiah 3 years ago

      You also have to solve this equation, since it is quadratic, that would mean you will have 2 solutions.

      7x+9=-8

      7x=-17
      x=-17/7

      ..

  • ahmed moultazim 4 years ago

    PLEASE WAHT IS WAY I CAN WRITE IN BACKGROUD. PLEASE EXPLAING THE WAYS IN THE VEDIO

    • trey_buck_71YT 3 years ago

      WHAT THE HELL DID YOU JUST SAY!?!?!?!?!? GET A DICTIONARY

  • Dan Harvell 4 years ago

    Wow… 27 years out of school and this FINALLY makes sense! It didn’t help me any that my instructor didn’t speak English very well. When being taught the art of solving “quadratic equations”, we were all just staring, glassy-eyed at the board while our instructor droned on about “quad-e-reddic eck-wishuns”. Thanks for making this look easy.

  • Radford University 4 years ago

    Thanks for the shortcut time stamp

  • Jay Lain 4 years ago

    she reminds me of the girl from Get Out, who else

  • Bruh Songs 4 years ago

    Beauty with brain😍😍

  • Malcolm Collins 4 years ago

    Very good Nancy. You take your time and put it over very well making it easy to pick up.

  • Cheyanne wolfhard. 4 years ago

    You explained this better than my teacher. >_< Thank you so much!!! 🙏✨

  • Chandeep kaur Labana 4 years ago

    You are so beautiful
    Blonde hair with caramel highlights would look good on you

    • Dhara Stover 3 years ago

      Chandeep kaur Labana sir this is a math video

    • Chandeep kaur Labana 3 years ago

      @Dhara Stover firstly I am not sir…….I am a 15 year old girl
      Secondly,I am just giving a suggestion and I don’t want strangers to blabber and yap away unnecessarily

  • Oneke SAN 3 years ago

    You are a genius!

  • Christopher Fleming 3 years ago

    Nacy you have a real gift in making math comprehensible to plodders like mysef. Thank you some much for these videos.

  • NtonasGamingGr 3 years ago

    You probably saved me from writing a lot of pages doing Δ=β^2-4αγ

  • eq2lornick 3 years ago

    So if you take the negative of the 2 results from your x diagram, will it always equal the answer?

  • MathTerminds - Making Math Like Finger Painting 3 years ago

    I can accept the writing backward. How is she writing on my smartphone screen? 😎

  • RØÇKSTÄR GÅMÏNG 3 years ago

    How you write in front of me

  • Tony Tay 3 years ago

    Is it a rules that the 2 wanted numbers to multiply, at the beginning, are to add with second number and multiply with the last one?

  • Tony Tay 3 years ago

    Awesome this one trick work :)) Thanks

  • Cyn rocks it 3 years ago

    You are amazing! I think I am prepared for my midterm now. Thanks to you!

  • Andrea Tomasini 3 years ago

    Sei proprio bella.

  • Marvin Stewart 3 years ago

    You have got me all the way o Business Calculus. Keep the new videos coming!!! Remember “Business Calculus” 🙂 You are GREAT

  • pierre bringmans 3 years ago

    thanks a lot

  • ʟᴏɴᴇᴠᴇɴᴛʜᴏʀɪᴢᴏɴ 3 years ago

    The magic X doesn’t work for 7x^2+7x-8

    • Juan Serna 3 years ago

      pretty sure it only works with whole integer factors. you’re gonna have to use the quadratic formula on that one

    • ʟᴏɴᴇᴠᴇɴᴛʜᴏʀɪᴢᴏɴ 3 years ago

      @Juan Serna awesome. Thanks heaps i was freaking out haha

  • MegaSquiff 3 years ago

    Very informative, but your beauty is rather distracting.

    • Dhara Stover 3 years ago

      MegaSquiff ok so what is she supposed to do? Put a bag over her head? Leave her face at home when she makes these videos? Learn math from someone else then and keep these gross comments to yourself

    • Cloudy Days 3 years ago

      @Dhara Stover Calm down it is a joke. You sound low-key jealous.

  • Kris Kollar 3 years ago

    super hero…

  • Sakshi Kene 3 years ago

    Really u r so great

  • Thapelo Ramoroka 3 years ago

    Thanks Nancy, that X method really helped.

  • Swifty Elsa 3 years ago

    But what if there is a 12 or any other number in the place of the zero(0)?? How do we do it??

    Im really bad in this chapter😅

    • Frank Shrimpton 3 years ago

      You make it equal zero. For example, if using, say, 2x^2+3x-2=12, you rearrange it to make it equal zero, so that would be 2x^2+3x-14=0, and solve from there.

    • Swifty Elsa 3 years ago

      @Frank Shrimpton Thanks bro👍

  • Tony Tay 3 years ago

    It helped me so much…now I’ll watch it 5-6 more times and try to do one… lol

  • Big Alz 3 years ago

    if only i had a maths teacher like you…

  • Mary Lee 3 years ago

    Thank you for you help. You did a great job explaining it.

  • Darion Domnìck 3 years ago

    This helped sm!❤

  • ZAZA 3 years ago

    Great nancypi

  • harwn harwn 3 years ago

    That is amazing, thank you Nancy

  • GMANBEATZ 3 years ago

    thanks!!!!

  • Nimi Sygns 3 years ago

    you make it seem easy

  • Tony Tay 3 years ago

    Greeting while struggling from Switzerland 🙂

  • Child Squisher 3 years ago

    Thanks

  • Michael Mills Lynn Mass 3 years ago

    Hi, I got a different answer when I factored the 2xsquared + 12x -32. I used the X method. After a x c and the middle term I ended up with -4 & +16.I pulled out the2x(×-2)I pulled out +16(×-2) I ended up with (×-2)&(2×+16) after grouping. And when I foil it I end up with the original problem of 2xsquared +12x -32. Thank you for teaching. You’re very intelligent.

  • Mr. West 3 years ago

    Marry me pls

  • bekas jaff 3 years ago

    Hey i like the your videos but can you move your hair i can’t see anything 😁😩

  • Kristina Mema 3 years ago

    Thank you so much

  • Choked Enlightenment 3 years ago

    Wow! You helped me cross a major road block… Thank you soo much.

  • Desert Rose 3 years ago

    Beautiful math.

  • Batisani Tshuma 3 years ago

    Pleased with you Nancy pi

  • Léa Saint-laurent 3 years ago

    Thanks for the magic X trick!
    I’m a big ball of stress and can’t get factoring right — this just saves my butt!

  • Mauricio Arizmendi 3 years ago

    You saved my life!!! Gracias

  • Dien Nguyen 3 years ago

    Your explanation is easy to understand thank you a lot

  • Jana mohamed 3 years ago

    I have been unable to understand this lesson for months despite having two teachers explain it to me several times, but only 3 minutes into the video, I had understood what I could not understand for months in just one second. You are a GENIUS. Thank you so much, love from Egypt.

    • Justin May 3 years ago

      Sorry dude😂😂

    • Marilyn Sumile 2 years ago

      Don’t you mean gril

    • Cyborg 2 years ago

      ARE YOU A PHAROAH

  • Luisa Barros 3 years ago

    You have no idea how you save me tbh! All the way from Brazil 🙂

  • Jayde Ochinero 3 years ago

    How you writing backwards

  • nathan porter 3 years ago

    I liked this video

  • Commander M 2001 3 years ago

    i need this but with fractions for my exams tommorow morning

  • Freaty the Dreary 3 years ago

    Thank you ma’am, you may have just saved my midterm tmr

  • Miss Robie Madrid 3 years ago

    I got 16xsq. +66x+35=0

  • Hugh Culliton 3 years ago

    Not only are you writing backward, but you’re left-handed as well!

    Thank you for an excellent explanation!

    • Azan Ali 3 years ago

      Good Luck with your Maths P2

  • The Official Barack H. Obama Youtube Channel 3 years ago

    are you writing backwords?

  • 1earflapping 3 years ago

    You explain the math part well in all your videos, but what i miss in some of them is: *where* do you supply these methods, other than a math curriculum? If any of them could be used to solve real life problems, it would be great if you offer suggestions for usage in the Information panel. Thanks again.

  • Niall Finn 3 years ago

    Your backwards writing is better than mine forwards!!!

  • BSV KING 3 years ago

    i can’t focus on what shes teaching because she so attractive.

  • Dindoo Nuffin 3 years ago

    What’s the topic again?

  • Demetrie Alger 3 years ago

    You got a man?

  • Saurabh Sethy 3 years ago

    Awesome video. Thank you. Please keep making more lectures.

  • Zachi Evenor 3 years ago

    1:56 Why do you assume that the factors which multiply to -16 and add to 6 are integers? This is indeed the case in many “textbook problems” where the author engineer the expression to factor into “pretty round numbers” but not necessarily the case in real life. The general way to factor is finding the roots of the polynomial (for 2nd degree polynomial there is a formula, there are formula for 3rd and 4th degree polynomials as well, but not for n>5 degree polynomials).

  • Ethan Tran 3 years ago

    how does she write backwards like its nothing

  • Jocelyn Martinez 3 years ago

    Why did it become x=-5?

  • GamerLance 078 3 years ago

    I finally understand it, now I won’t be embarrassed infront of my crush 😍

  • Amanda Godin 3 years ago

    VERY HELPFUL! Thank you so much! This helps to make much more sense!

  • Kenny Smith 3 years ago

    I got one that I can’t figure out.. How do I factor x²+7x+80

  • Arturo Garza 3 years ago

    Why is it called a quadratic equation?

  • 7x34hj 3 years ago

    At 6:13. I use a slightly different method. Using your example:

    1) mult. coeft of x^2 by const.: 3 x -5 = -15.

    2) Find factor pairs that sum to coeft of the x-term: -1 and 15.

    3) Re-write the original equation using -x + 15x (found at .2): 3x^2 – x + 15x – 5

    4) Place brackets around the first two terms and again around the next two terms: (3x^2 – x) + (15x – 5).

    5) Factor these brackets: x(3x – 1) + 5(3x – 1). Note: the two bracket MUST be the same, else you have made a mistake.

    6) Put the terms outside each bracket, i.e. x and 5, into one bracket, (x + 5); the other bracket is already done, (3x – 1).

    7) Put these brackets together: (x + 5)(3x -1). giving x = -5, x = 1/3.

    It may appear difficult but this is owing to the format here. Try it and you will see it is much simpler. In my view at least. 🙂

  • Cristina Mae Dela Vega 3 years ago

    you made my life so easier. thank you
    its easier to factor by understanding your video

  • aseana 3 years ago

    nice omggggg

  • siroos siroos 3 years ago

    HEART ^2

  • ivan susilla 3 years ago

    We can also have your number, since we’re talking about numbers 🔥🔥🔥🔥🔥 i can’t even focused just staring at her lol

  • Ahmed Alias Eido 3 years ago

    thank you so much, I have been studying for 16 years I never understand the factoring before watching your video. Ahmed from Iraq

  • Yyan Mayorga 3 years ago

    can you use the magic x to every other equation?

  • Princessfaith 3 years ago

    Nancy, the hot smart mathematician. who else is amazed by how pretty she is!

  • LuxegoldRose9 3 years ago

    I really love your channel and it really helps me because I know it may seem like a small thing, but I like how we’re able to see a person and not just hands writing, because I take in a lot when I’m learning. I can visually see you writing and I can also see words coming out of your mouth which doubly cements the information I’m intaking so thank you so much for that. I also like your setup with that clear board and honestly even the pink color keeps a girl like me engaged, who is allergic to math. Thank you for all your videos that are concise and gentle. I’m taking calculus again which I failed and I’m hoping to really make a comeback. You videos give me hope. Thank you.

  • Thomas Dulson 3 years ago

    Useful video thank you.

  • Zachary Ziegler 3 years ago

    I CANT EVEN BEGIN TO THANK YOU ENOUGH. You have taken a huge weight off my shoulders (the fear of factoring). Keep it up!

  • Matt Specht 3 years ago

    Nancy I tried this magic X method with
    3x^2+3x-18
    And I wasn’t able to get the correct result. Not sure why.
    I got: (x+3)(x-2)
    but the correct answer is (3x-6)(x+3)
    Your thoughts?

  • LolDarrellLol 3 years ago

    thank you!

  • The Amigo 3 years ago

    Can we appreciate how she ended up the video at 11:11

    A legend

  • SOLID BIG SNAKE 3 years ago

    I’m all about that “Brute Force Method”

  • Skrmng Hrd 3 years ago

    A smart beautiful girl that’s really good with math. I mean, what more can you ask for?

  • Skrmng Hrd 3 years ago

    But anyways, humor aside, I’m curious how do you factor REALLY large numbers, say x^2 + 8x – 2900?

  • Livinus YT 3 years ago

    How did you get that and were for the third equations

  • Conner Manning 3 years ago

    How tf do u write backwards

  • Erica Berardi 3 years ago

    Has anyone tried to solve the equation previously showed in the video with the x method? (3x^2+12x-36)? It gives me (x-2)(x+6) as a result, which is weird.. but if solved and multiplied by 3 again works.. just wondering why the x method didn’t initially give thee exact result.

  • Adrian Ruiz 3 years ago

    i love you nancy

  • Israa Fawze 3 years ago

    This video helped me alot thanks ,😍💞

  • Brianna Longdo 3 years ago

    THANK YOU!!!!!!!!!!

  • Alexis Doble 3 years ago

    thank you so much you are so helpful!! definitely recommend to watch Nancy’s videos 🙂

  • Chris Robinson 3 years ago

    Thank you for this video. I am very appreciative of your teaching style.

  • elena 3 years ago

    oh my god thank you YOU ARE A GOD

  • Max Poulin 3 years ago

    Fnished high school 20 years ago. Studied humanities and worked for 17y, changed fields and now back at school, taking math refresh course. Didn’t understand factoring back then and didn’t understand it for the past 3 weeks… You saved me! thank you so much.

    It’s not just the teaching, I know video editing is time consuming!! Thank you so much!!

  • HARSHNDEY PANDEY 3 years ago

    you are amazinggggggggggg

  • Caleb Graf 3 years ago

    #s

  • Leo K 3 years ago

    Concise and understandable. I was unaware of the “magic x” trick. Thank you for sharing your knowledge.

  • Hatem Saadallah 3 years ago

    Can you please make a video about how to solve the cubic equations?

  • thegobe 3 years ago

    Nancy you’re so fit 😍

  • Mr. Towelie 3 years ago

    May I use the restroom please?

  • kenza 3 years ago

    please BE MY TEACHER

  • Zenoh 3 years ago

    Thank you so much, I’m always asleep in class so this video helped me catch up

    • Rita Akonobi 2 years ago

      hahahahahahahaha. me too

  • Jean O 3 years ago

    Anybody here from Otero?🤣🤣

  • N.alhos225 3 years ago

    you are a life saver

  • coco 3 years ago

    You’re the best math teacher ever!

  • ItzNate24 3 years ago

    You are genius, this saved me.

  • Florian Wilford 3 years ago

    ya fit

  • Moulid Farah 3 years ago

    Thank you it’s really very helpful as I was struggling solving quadratic

  • amir 3 years ago

    You are awesome nsncy

  • moaiad alsinawi 3 years ago

    I entered the video just to see her when actually I don’t need the explanation😂.

    • Momina 2 years ago

      That’s creepy ngl

  • Nicholas Castro 3 years ago

    I love you lol I would marry you if I could. You’re a god send!

  • Sanithu Samaranayaka 3 years ago

    HOW DO YOU WRITE BACKWARDS?!?!

  • Harkiran Sandhu 3 years ago

    Thank You soo much , understood it

  • Notravian 3 years ago

    queen

  • Monica Ndhlovu 3 years ago

    Thanks that’s a time saver

  • ZED ZAD 3 years ago

    Dear Teacher, Please Can give us an explanation about the Differential equation 1st ord. constant coeff. , and thanks

  • David Pierce 3 years ago

    Have no idea how you get +6x???

  • Antopia HK 3 years ago

    just wondering, do you write backward?

  • NJ Lama 3 years ago

    Great work

  • AQEEL SHAFI 3 years ago

    pain in neck to understad this method

  • Edmund Hamlin 3 years ago

    Thank you so much. I have not taken Algebra in years but need to study for my electrician aptitude test. This was very helpful. However could you suggest a video on equations that the numbers are bigger and need the middle number broken up? Thank you again

  • Charl0z1 3 years ago

    I was never taught the x factoring thing wth

  • Nikol Karagyozova 3 years ago

    And what is happening when we have only x in the middle
    For example: x.x-x-6=0

  • John Clement 3 years ago

    My degree is in English Lit (1976) because I never could follow math once I hit Algebra II. I wish I’d had you as my teacher. Thank you for what you’ve taught me so far. Please don’t stop.

  • Merhi Tower 2 years ago

    you helped me so much

  • James J. St.Cyr 2 years ago

    Bravo!!

  • KimAnh Chung 2 years ago

    Thanks

  • LAL BAHADUR 2 years ago

    Luv u nancy😙😘

  • Paul Price 2 years ago

    When are you going to sell some tee shirts?

  • M J 2 years ago

    Excellent explanation!

  • Aini Aini 2 years ago

    Can u pls end up the second example plss …. Or is it the final answer

  • Tambuwal Maths Class 2 years ago

    What tool do u used for ur youtube content?

  • Jovan Grujic 2 years ago

    Nancy you are a genius 🙏🙏🙏

  • Frederick Brighton 2 years ago

    I am 83 and wish you were around when I was at college

    • Rita Akonobi 2 years ago

      You’re 83 and you still watch math videos….. I need to love math like you

  • lil j 2 years ago

    Does this work for cubic equations factoring?

  • Yahya Alsheikh Kassim 2 years ago

    ur help with math helped me

  • dorian shaffer 2 years ago

    What do you mean an overall constant? Why not just a constant?

  • B Kumar 2 years ago

    Plz help me to solve following equation by this method
    x2-7x+2 = 0

  • Augusta Yarteh 2 years ago

    X square 2 _6= 16. I can start my own like this. (×+4) or (x_4)= to _ 16 then i solve for 0 which is i use 4* 4 is 16. So i will equal my number 4 = to zero which is 0_4 or

  • L Sunday 2 years ago

    this is fckn unhelpful.

  • Justin James 2 years ago

    I was seeing polynomials as nightmare but now pert good

  • Mitesh Raja 2 years ago

    Okay that was simple as a dimple<---😄thanks

  • Isaiah Nino 2 years ago

    you suck:(

  • Gheorghe Georgescu 2 years ago

    I actually know a super fast way of factoring that I want to publish in a future book hopefully.

  • Paulus Tobias Mwadhina 2 years ago

    really this helps thankd Nancy

  • Djwaffles 1000 2 years ago

    e

  • Joseph Lindal 2 years ago

    You are awesome!

  • Mike Bell 2 years ago

    Must be a skill writing backwards

  • Jaiden Arcelay 2 years ago

    Wow can you be my math teacher please you are fantastic

  • Edward DeMedeiros 2 years ago

    Best explanation yet by anyone!

  • Serhan School 2 years ago

    sovle this equation 6x^2+5x-9=0 by that methode

    • W M 2 years ago

      This trinomial can’t be factored, only with Quadratic formula

  • Sudesh Sandaruwan 2 years ago

    this is great

  • Patrick Shaw 2 years ago

    Thank you, your videos are super helpful!

  • Saurabh Sethy 2 years ago

    Superb video mam!

  • FalconFeather33 2 years ago

    There’s a lot of people thanking you already but I’d just like to add to the pile

  • xx_XTREME- METALHEAD_xx 2 years ago

    omg thank u so much, this really helps and u explain way more than what my actual teacher does, u got one more sub now, thanks for the help and I’ll be on the lookout for more of ur content

  • Just For mobile 2 years ago

    What if the question was x^2 -4x -1 >0 ?

  • Aryalanae 2 years ago

    How do you solve this: x^2−4x+1=0

  • Unlocking Potential Educational Services, LLC 2 years ago

    Great video! Thanks

  • Jae 2 years ago

    how are you drawing in the air 🤔

  • Diarla Amaral 2 years ago

    I hope you realise how amazing you are Nancy! When I feel frustrated from college I just watch your videos and life is great again! Thank you so much!

  • a.l3 2 years ago

    you saved me 🥺

  • David Pearson 2 years ago

    this helped me alot , thankyou

  • MorockinDave T 2 years ago

    i really enjoy your calm way of explaining this material I’ve learned quite a bit from your video’s by relaxing and Not being so intense or have anxiety with understanding math … you are fabulous in covering the technique’s in grasping your way of instruction !! Thanks so much … Merced, Ca.

  • POMMI 2 years ago

    Wow I really like this! Im also teaching marh in high school I have different approach but still arrived to the same answer! There are some tricks in this anyway this is awesome! I created a channel to incorporate my lessons! This is an inspiration

  • Mushtaq Ali 2 years ago

    Thank you

  • Mushtaq Ali 2 years ago

    Actually Thank you very very much

  • Chempulli School Of Mathematics CSM 2 years ago
  • Chelsea O 2 years ago

    I love rewatching your videos just for fun.

  • zelo 3 2 years ago

    Photomath has a heart attack when you try to scan these problems so this really helps.

    • ttae gguk— 2 years ago

      lol true

    • Monoranjan Roy 2 years ago

      Yea lol 😆

  • Nik Danial 2 years ago

    How about the last number in the equation is positive? do we have to use the same magical X method? I’m confused.. pls help

  • Infamous The god 2 years ago

    is the question at 5:18 done at the end or do need to the last part with the question that came before this at 4:12

  • Kolioko 2 years ago

    Ahahah😅

  • Michael Nwafor 2 years ago

    What’s bigger than thanks Nancy? Am becoming better at math as I age.

  • john john 2 years ago

    Mmm you sexy.

  • MFaysal Akin 2 years ago

    Since the Mathematics Language is a world language, I can only watch the works. I don’t know how to speak and write English at this time, but I get help from uncle google.
    You will no longer be able to teach mathematics to children born in 2004 and beyond, or you must choose the meaningful way of learning. Because these children are questioning and learning, they will question and write meaningfully. Dear teacher, thank you for sharing the Explanatory information with us.

  • Elana Shae 2 years ago

    Yo is she writing everything backwards on the glass??

    • Cephalon XenoCore 2 years ago

      Good question, can’t answer it though

    • William Kallemeyn 2 years ago

      She writes normally on the glass, so it would appear backwards to us, but she flipped the video like a mirror image. Nancy is now backwards but the writing has been flipped so it looks normal to us. Humans are mostly symmetrical so Nancy still looks normal.

    • Elana Shae 2 years ago

      William Kallemeyn Ahh that makes sense, I was super impressed at first lol

  • Avery Woodlief 2 years ago

    why does the X method not work for 3x^2+8x-60=0?

  • Joy Michele Timmons 2 years ago

    Excellent and helpful video.

  • Kyla Garrity 2 years ago

    Agh thank you so much. I couldn’t remember this lesson from Algebra when i needed it in online Geometry classes so tysm so many videos on the same topic made no sense but you explained it really well and brough back some of my memories of these lessons, keep up the great work

  • Saleem Md 2 years ago

    Hi @NancyPi
    Would this apply to the below?
    2x^2-9x-17=64
    2x^2-4x-5=1
    Many thanks

  • Esther Liu 2 years ago

    magic x method: u must first factor out any GCF for it to work

  • Sas Bekverdi 2 years ago

    Should’ve written it a third time just for a kick at the expense of others. 😂🤣

  • Luis 2 years ago

    I just realised shes writing it backwards wtf

    • Luis 2 years ago

      Wait nvm im stupid

  • NoQuarter 2 years ago

    Omg ty

  • Yosoluwa Young 2 years ago

    I have my math exam on Monday thank you so much for this

  • Imran Hosen 2 years ago

    thank you very much madam

  • mathew thomas 2 years ago

    Wait on the last one where she did the magic X and then did factoring, Isn’t the first value -3 because it’s 3x=-1?
    Edit: Never mind, I was wrong, it is 1/3 not -1/3.

  • mathew thomas 2 years ago

    Also how did this girl find out a strategy that simple yet so good. The magic X made life so much easier.

  • Esther Oh 2 years ago

    YOU ARE SO AMAZING THANK YOUUUUU

  • My stuff 2 years ago

    I’m having such a hard time relating this math to the real world… how can I visualize the concept in a more concrete way?

    • Amanda 2 years ago

      Graphs. Punching it into a graphing calculator or ask Siri and she will show you,

  • carolineforest 2 years ago

    So refreshing to have a female teaching maths. Also a person that has no accent.

  • Howling Media 2 years ago

    3x=1/3 how do you get that

Comments are closed.