Question

Разложите на множители
x^2(b-2)+y(2-b)
(a+b)^3-a(a+b)^2
m(x-y)-n(y-x)
(x-y)^2+x-y

Answer 1

1)=x^2b-2x^2+y^2-yb
2)=a^2+2ab+ab^2+b^3-a^2-ab^2=2ab+b^3
3)=mx-my-ny+nx
4)=x^2-2xy+y^2+x-y