分解因式：x方y-2xy方+y的3次方

x^2y-2xy^2+y^3
=y(x^2-2xy+y^2)
=y(x-y)^2

x²y-2xy²+y³
=y(x²-2xy+y²)
=y(x-y)²

x方y-2xy方+y的3次方
=x^2y-xy^2-xy^2+y^3
=xy(x-y)+y^2(x-y)
=(x-y)(xy-y^2)
=y(x-y)^2

=x方y-xy方-xy方+y3方
=xy（x-y）-xy方+y三方
=xy(x-y)-y方（x-y）
=y（x-y）方

x方y-2xy方+y的3次方
=y(x方-2xy+y方)
=y(x-y)方

x方y-2xy方+y的三次方=y(x方+2xy+y方)=y(x+y)的平方