2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少

来源：学生作业帮助网编辑：六六作业网时间：2024/11/23 04:34:58

2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少

2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少
2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少

2x(x²y-xy²)+xy(xy-x²)]÷x²y等于多少
[2x(x²y-xy²)+xy(xy-x²)]÷x²y
=[2x²y(x-y)+x²y(y-x)]÷x²y
=2(x-y)+(y-x)
=x-y