化简x-y/2xy-x²-y²

来源：学生作业帮助网编辑：作业帮时间：2024/05/10 07:19:57

化简x-y/2xy-x²-y²
化简x-y/2xy-x²-y²

化简x-y/2xy-x²-y²
(x-y)/(2xy-x²-y²)
=(x-y)/-(x-y)²
=1/-(x-y)
=1/(y-x)

-（x-y)/（x-y）^2=-1/(x-y)=1/(y-x)