Question

разложите на множители
xy2-y+y2-xy

Answer 1

xy2-y+y2-xy = y(xy - 1 + y - x) = y(x + 1) (y - 1)

Answer 2

Ху2-у+у2-ху=у2(х+1)-у(1+х)=(х+1)(у2-у)=у(х+1)(у-1)