разложите ** множетели x^3y-x-xy^2+y.

Question

разложите на множетели x^3y-x-xy^2+y.

Answer 1

x^3(y-1) - x(y-1)
(y-1)(x^3-x)
 x(y-1)(x^2-1)
x(y-1)(x-1)(x+1) 

Comments

cnc

---

незашто

Answer 2

если x^3+y^3-xy^2-x^2y, то

x^2(x-y)-y^2(x-y)=(x^2-y^2)(x-y)=(x+y)(x-y)(x-y)=(x+y)(x-y)^2