Question

how would you expand (x-1)^4

Answer 1

For easier method, you can apply the principle of Pascal's Triangle. Do you know that?

Answer 2

(x-1)(x-1)(x-1)(x-1), then combine like terms, which is the long method.

Answer 3

i've heard it but it will take too long for me in the exam any other method? @Yttrium

Answer 4

Just like @Yttrium said, use the pascal's triangle :)

Answer 5

maybe you can do this way ((x-1)^2)^2

Answer 6

I think this video would help you understand "pascal's triangle"

http://www.youtube.com/watch?v=OMr9ZF1jgNc

Answer 7

@xandrineguillo Do you know how to do it now?

Answer 8

i discovered the binomial thoerem :) thank you

Answer 9

Good, you got it by yourself. :)