Question

Помогите СРОЧНО
Задание:Разложите на множители
1)x^3-x^2y-xy^2+y^3
2)x^2(x-3)-2x(x-3)+x-3

Answer 1

$1); ; x^3-x^2y-xy^2+y^3=x^2(x-y)-y^2(x-y)=\\=(x-y)(x^2-y^2)=(x-y)(x-y)(x+y)=(x-y)^2(x+y)\\2); ; x^2(x-3)-2x(x-3)+x-3=(x-3)(x^2-2x+1)=\\=(x-3)(x-1)^2$