Question

Помогите задание во вложениях

Answer 1

$-(u-5)^3-2(u-3)(u-1)=-(u^3-15u^2+75u-125)-\-2(u^2-4u+3)=-u^3+(15-2)u^2+(8-75)u+(125-6)=\=-u^3+13u^2-67u+119$