Question

Срочно!
Просто ответ
$(-b^{2} +4)(b-4)+(b-2)(b^{2} +2b+4)$

Answer 1

Ответ: 4b² + 4b - 24

Answer 2

$(-b^2+4)(b-4)+(b-2)(b^2+2b+4) =\\(2-b)(2+b)(b-4)-(2-b)(b^2+2b+4) =\\(2-b)(2b-8+b^2-4b-(b^2+2b+4)) =\\(2-b)(-4b-12) = \\4b^2+4b-24\\\\Answer: 4b^2+4b-24$