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(x-y/x+y)^2÷(y-x/x^2+2xy+y^2)^2

题目详情
(x-y/x+y)^2÷(y-x/x^2+2xy+y^2)^2
▼优质解答
答案和解析
应该是(〖(x-y)/(x+y))〗^2÷((y-x)/(x^2+2xy+y^2 ))^2吧,如果是的话答案就是(x+y)^2啦
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