分解因式x(x-y)²-2y(y-x)
问题描述:
分解因式x(x-y)²-2y(y-x)
答
x(x-y)²-2y(y-x)
=x(x-y)²+2y(x-y)
=(x-y)[x(x-y)+2y]
=(x-y)(x²-xy+2y)