(x-y)²-x+y 因式分解 老师咋算
问题描述：
(x-y)²-x+y 因式分解 老师咋算
答
(x-y)²-x+y
=(x-y)²-(x-y)
=(x-y)(x-y-1)
不懂可追问,有帮助请采纳,谢谢!