【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】计算
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【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】计算【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】计算【4y^2—x^2/x^2+2xy+y^
【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】计算
【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】
计算
【4y^2—x^2/x^2+2xy+y^2】/【x—2y/2x^2+2xy】计算
你表达的不清楚我猜原是是这样的你看对吗
不行的话请采纳后再追问,我就能看到
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(x+y)(x+y+2xy)+(xy+1)(xy-1)(x+y)(x-y)+4(y-1)
计算:2xy/(x+y)².(x+y)/4y
(-x-y)(x^2+xy+y^2)
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2*(x-y)²(y-x)(xy)
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X-Y/2X+2Y XY/X+Y²
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化简2(x²y+xy)-3(x²y-xy)-4x²y