Question

(x-3)(x^2+3x+9)-(x+1)(x-1)(x-2)​

Answer 1

Ответ:

(x-3)×(2x^2+3x+9)-(x^2-1)×(x-2)

2x^3+3x^2+9x-6x^2-9x-27-(x^3-2x^2-x+2)

2x^2+3x^2-6x^2-27-x^3+2x^2+x-2

x^3-x^2-29+x

x^3-x^2+x-29