分解因式（1）4x^2y-2xy^2= (2)2x^3+12x^2y+18xy^2=
问题描述：
分解因式（1）4x^2y-2xy^2= (2)2x^3+12x^2y+18xy^2=
答
i don't know
答
4x^2y-2xy^2= 2xy(2x-y)
2x^3+12x^2y+18xy^2
=2x(x^2+6xy+9y^2)
=2x(x+3y)^2