Разложите на множители y(a-y)-y^2(a-y) a(a--1) x(x-4)-5(4-x) b(b-1)+(1-b) 2(p-2)+p(2-p) (x-y)+x(y-x) n(m-n)^2-(n-m)^3 a(a-c)^2-c(a-c)(c-a)

Y(a-y)-y^2(a-y)= (a -y)(y-y^2)
a(a-1)-(a-1)=(a-1)(a-1)
x(x-4)-5(4-x)=(x-4)(x+5)
b(b-1)+(1-b)=?
2(p-2)+p(2-p)=(p-2)(2-p)
(x-y)+x(y-x)=(x-y)(1-x)