Question

Factor Completely (x-10) (x+10)^2 - (x-10)^2 (x+10)

Answer 1

?

Answer 2

(x-10)(x+10)(x+10)-(x-10)(x-10)(x+10)
(x^2+10x-10x-100)(x+10)-(x-10)(x^2+10x-10x-100)
(x^2-100)(x+10)-(x^2-100)(x-10)
(x^3+10x^2-100x-1000)-(x^3-10x^2-100x+1000)
x^3+10x^2-100x-1000-x^3+10x-100x+1000
20x^2-200x

Answer 3

so the answer is?

Answer 4

-10 +10
?