【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值

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【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值【(X²+Y²)-(X-Y)&#

【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值
【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值

【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值
【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,
【2xy+2Y(X-Y)】/4Y=1
4x-2y=4
2x-y=2
4X/(4X²-Y²)-1/(2X-Y)
=4X/(4X²-Y²)-(2x+y)/(4X²-Y²)
=(2x-y)/(4X²-Y²)
=1/(2x+y) ←到此无法利用上面的结果,疑是题目有误.
4X/(4X²-Y²)-1/(2X+Y) ←修改后一个分式的分母为(2x+y)
=4X/(4X²-Y²)-(2x-y)/(4X²-Y²)
=(2x+y)/(4X²-Y²)
=1/(2x-y)
=1/2

请问,要求的那个是什么?是三个还是繁分数?
之前的式子,全部展开,化简

没有