(X3-2x2y+xy2)÷(x3-xy2)要求约分
问题描述:
(X3-2x2y+xy2)÷(x3-xy2)要求约分
答
(X3-2x2y+xy2)÷(x3-xy2)
=x(x2-2xy+y2)/[x(x2-y2)]
=(x-y)2/[(x-y)(x+y)]
=(x-y)/(x+y)