X^3+2x^2-x-2 сроооочно пряяяям

Question

X^3+2x^2-x-2 сроооочно пряяяям

Answer 1

( x^3 + 2x^2) - ( x + 2) = x^2( x + 2) - ( x + 2) = ( x + 2)(x^2 - 1) =
= ( x + 2)(x - 1)(x + 1)