[xy+y²/5x²-5xy+xy+y²]*5x/x+y-y/x-y 分式过程

分类: 作业答案 • 2022-01-09 18:01:45

问题描述：

答

[(xy+y²)/(5x²-5xy)+xy+y²]*5x/(x+y)-y/(x-y)
=y(x+y)/5x(x-y)×5x/(x+y)+y(x+y)×5x/(x+y)-y/(x-y)
=y/(x-y)+5xy-y/(x-y)
=5xy

[xy+y²/5x²-5xy+xy+y²]*5x/x+y-y/x-y 分式 过程