因式分解方法:m(x-y)(x-y)-x+y

问题描述:

因式分解方法:m(x-y)(x-y)-x+y

利用提取公因式法
m(x-y)(x-y)-x+y
=m(x-y)(x+y)-(x-y)
=(x-y)(mx+my-1)