[(x-y)²+(x-y)(x+y)]÷2x初二数学计算.

分类: 作业答案 • 2022-01-09 18:05:27

问题描述：

答

[(x-y)²+(x-y)(x+y)]÷2x
=(x-y)(x-y+x+y)÷2x
=(x-y)*2x÷2x
=x-y