The Quadratic Formula (Definition & example question)

[@Redaxi]

One of my biggest goals is to be your student. I am not an american or british but i am trying to improve my english

[@wiseoldglitchakajuju3334]

Eddie woo in Australia So yeh

[@wiseoldglitchakajuju3334]

I live in the same city as him.

[@ChidimmaIhezie]

Oh

[@Rendzio]

I love those videos, and that You are explaining simple things that we are presented on math without any context.

[@Mr.M1STER]

Sometimes putting numbers inside brackets when multiplying makes it more clear that you are multiplying. For example when you put (3x-2) when using the quadratic formula. In my opinion it would have been clearer to write (3)(-2). One of your students actually asked you why you used 3x. I was wondering the same thing. Anyway that is just my opinion, this video is still great.

[@LakhanKumar-uy1kh]

You are the best teacher in this world.

[@ashutoshtiwari5222]

I am from India ...this formula is know as "DHARACHAR EQUATION" ....

[@raulcavalcante9193]

funny in brazil it's called the bhaskara equation

[@maybeaccurate8489]

Hi! A question, do you record all your classes? Do you think it impacts the quality of your teaching and explaining the days you do record?

[@aidanplays1419]

I dont think it does because in the video hes not addressing the camera, he is focusing on and addressing his class

[@Light-rk8cr]

Great video, it rly helped me. While studying algebra , i came across many questions that are hard to factorise ( i was only taught to factorise btw ) , and used a math solver to help find the answer , but i didn't rly understood what the math solver was using . This vid rly helps explain the quadratic formula. But i think that formula is going to haunt my dreams. I memorised it after the 2nd time it popped up , which sounds sad . But at least it helped me with my endless algebra problems .

[@AbhayKumar-gl5hh]

Well we can practically short the equation by replacing b²-4ac by D where D is the same thing, the discriminant of the equation So it would be like, x = (-b±√D)/2a Would be easy to kinda memories if we know what discriminant is and what is it's application on the quadratic equation.

[@CommonInvesting]

wow. this made quadratic equations much easier for me! would you always use That same formula for any equation?

[@devlimbu4762]

I was curious where does this formula come from...

[@TheDemonicHellshark4980]

Execellent explaination!

[@gold4963]

Haha, quadratic equations are so cool. What grade are you teaching? (I learned this in 9th grade.)

[@samuelbowers1928]

I learned in 6th grade lol

[@charlesmcquillan9498]

The Quadratic Formula should be written as -b/2a plus or minus the sq. root of bsq. -4ac all over 2a as -b/2a gives the position of the Axis of Symmetry and the rest gives the deviation from there, where the graph crosses the x axis.

[@danielayass8909]

You are my savior

[@deepg2477]

the formula is called Sridhar Acharya mathematician from India...funny how we refer to leibnitz, taylor etc. for math equations but drop the name of the inventor if he is an Indian..im fact Indian number system is called arabic numeral

[@Mathin3D]

Completing the square ALWAYS works!

[@rohangujar1058]

quad represents 4 then why does it has only 3 variable a,b and c

[@simonm.1122]

Because it is squared. Squares have four sides.

[@samuelbowers1928]

There is 4 variables. X, A, B, C.

[@Uncreeperble]

how do I tie my shoe lace

[@rihamalharrasi8031]

Hey can you please come to our school to teach me math your the best math teacher I live in Oman come her😇

[@TheRodrigo351]

i want to teach like you

[@ChidimmaIhezie]

Of a sort

[@__The_Random_Guy__]

My teacher makes me feel so bad about not knowing this :,(

[@jullyxiao814]

I regret getting a good maths score for my map test because now I am just generally confused

[@jemmayoung4458]

legend

[@ChidimmaIhezie]

The quadratic formula is a replica of completing the square but it has squareroots

[@ChidimmaIhezie]

I have

[@ChidimmaIhezie]

year 10

[@jullyxiao814]

I am in year five, trying to do my khan mappers, and struggling to understand WTF this is.

[@jullyxiao814]

My classmate learned this in like, I dunno, year four?

[@15r8r]

Why didn't pull out square root of 16 or 9? instead of 4?

[@tamircohen1512]

root 4 * root 7 = root 28. root 4 can be simplified to 2 and the root 7 is in its simplest form so it remains leaving 2 * root 7. No square number apart from 4 can be multiplied by another number to equal 28 so using 4 will give the simplest answer.

[@micksav9150]

@@tamircohen1512 Thanks, that had me stumped

[@michaptak2217]

Literally any numbers - Meanwhile 0 =/

[@jullyxiao814]

Like, what grade is this even ment for?

[@creativekid5215]

10

[@explainingphysicsandmathematic]

For the proof kzbin.info/www/bejne/bmatY4GvgZ2eaKs

[@dylanbigg6805]

please respond to my comment on the last video

[@Whorehey900]

Dylan Bigg wow

[@dylanbigg6805]

Jorge Ayala I know, he doesn't like socialising lol

[@youknuckle]

This is the internet, just to remind you.

[@dylanbigg6805]

youknuckle yeah I know 😂

[@arjunnair4731]

*facepalm*