Question

What is a simpler form of the following expression?

(-10x^3 + 30x - 20) / (-5x + 5)

Answer 1

can start by factoring out -5 top and bottom and canceling

Answer 2

\[\frac{-10x^3 + 30x - 20}{-5x + 5}=\frac{-5(2x^3-6x+4)}{-5(x+1)}=\frac{2x^3-6x+4}{x-1}\] now maybe we can factor and cancel

Answer 3

my some miracle the numerator factors as
\[\frac{2(x-1)(x-1)(x+2)}{x-1}\] leaving you with
\[2(x-1)(x+2)\]

Answer 4

None of the answers given are as simplified as that?

Answer 5

true, but you can find the answer by multiplying
\[2(x-1)(x+2)\]

Answer 6

got that or you need help?

Answer 7

2x^2 + 2x - 4. Got it. Thanks.

Answer 8

yup
yw