Question

Factor (show steps too please):
(x-1)(x+2)^2 - (x-1)^2(x+2)

Answer 1

factor out (x-1)(x+2)
what u get ?

Answer 2

Well the answer in the book is 3(x-1)(x+2) but I don't know how to get that.

Answer 3

(x-1)(x+2)^2 - (x-1)^2(x+2)
first look at your exponents...

you have two that are squared...how woudl you write that out without the squared?

Answer 4

now....distribute like craziness