Math Tutorial - Deriving the Quadratic Formula

[pepteamsergi09]

around 4:28 don't you have to cross multiply??? so you'll get something like -(c/a)(4a/4a)+ ab^2/4a^2????

[XOSiren18XO]

This is great! The best tutorial of deriving the quadratic formula out there.

[noiRAWR]

6:52 "Omygaaaawd I forgot." xDDDD Love that part!

[swimmer042]

thank you so much you just got me 10 extra credit points in algebra

[hendrix5045]

@swimmer042 , glad i could help :)

[imsohot887]

@hendrix5045 lmao yur voice is not anoying

[LS834]

nice and easy 1 all the other video i saw was so complicated thank u

[maijib2009]

Thats very good I like that, when you show something you should pretend to make mistake so people can understand.

[Airflow993]

What software did you use to make the video?

[irishpride664]

@gogogadgetBeast your comments are annoying :D

[1me2doom]

that is so long



[johnolazabal]

thanks bro you helped me a lot :)

[braille94]

i lov you with all my heart.. man, that saved me.

[alkhars11]

Thanks my teacher needed me to do this

[kilograms2500]

thanks man....i needed this.

[Lovebug710]

Good stuff! I wa trying to do it a different way my teacher taught me but your way is much easier!

[DrLsw]

students would probably understand how to do the math better if they learned how you get the formula like you just did.

[timoteo58]

EXCELENT, VERY GOOD.

[markdhen]

im not that good in mathematics but i want to be expert in math.. i would like to ask when to put ± in an equation? also the 1/2 that you used to multiply is it standard to use 1/2 always in solving that kind of problem? if not how did you get 1/2 to use to multiply.?

[jortiz71791]

When you take the square root of a real positive integer, such as n^2, the square root is ±sqrt(n), because the square of a negative number is also positive.

[emplp]

very cool, thanks br0

[ycha50]

WOW... This is very helpful! Thanks!!

[EimantazzzWM]

add more

[hacksign000]

thanks dude

[MercilezzViper]

Great job, very helpful!

[hendrix5045]

Thanks for the positive feedback :]