How to quickly expand binomials

Quicker than pascal's triangle.

Note: Yes, I know I accidentally said x^3.

PS. If its something like

(x-y)^5

It is the same procedure except the signs would go + - + - +.

Category:

Education

Tags:

• math
• quick
• expand
• binomial
• academy

[xXxz0om3rxXx]

oh my gosh im actually understandin it lol but ur writin sux D: lmfao try a different method like.. writing on a board ..? lol idk .. xD

[MetaWolfakaZERO]

Who created math i really want to kick their ass

[boredness6789]

Ugh seriously I just learned a half a weeks lesson in this one video. THANK YOU.

[HmBInTheMovement]

Thanks !!!!! It is way easier to understand now :)

[Momoko4ever1]

GENIUS! THANKS

[musiclove824]

YOU PERFECT BEING. Now I might get a passing grade on my test tomorrow... haha

[jeoantapo]

Este método es uno de los mas simples, remember, cuando se tiene (x+y)^n los términos van alternados empesando siempre por el + - + - + - y el número de términos a obtener siempre es (n+1) es decir uno mas de el de la potencia. Ej: si (x+y)^2 entonces se tienen 3 téminos, si (x+y)^3 entonces 4 términos y en general si (x+y)^n entonces (n+1) esto les servirá cuando necesiten saber un determinado término. Saludos desde Ecuador.

[VivaLaDivax]

is this like the pascal's traingle expansions?

[nez191]

you sound mad excited about binomial expansion...thanks a lot

[zezo7hdk]

@psychoTR2 i get how it goes if the binomial is positive. im asking about when its negative does it go (negative-positive-negative...­) or (positive-negative-positive...­.)? or both are correct? thanks.

[psychoTR2]

@zezo7hdk I think that if the coefficient of the binomial is positive, all of the terms in the expanded binomial are positive. If the binomial's coefficient is negative, the signs alternate by negative, positive, negative, positive, and so on. It's been a while since I've done this stuff, so I'm rusty, but if I remember right, this is how it goes.