Question

Разложите на многочлен 1)ay-2ab+2by-y^2=
2)ay^2+2a^2-a^3-2y^2=

Answer 1

a(y-2b)-y(y-2b)=(y-2b)(a-y)

a(y²-a²)-2(y²-a²)=(y²-a²)(a-2)=(y-a)(y+a)(a-2)