化简:x^2-2xy+y^2/y^2-x^2
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化简:x^2-2xy+y^2/y^2-x^2化简:x^2-2xy+y^2/y^2-x^2化简:x^2-2xy+y^2/y^2-x^2x^2-2xy+y^2/y^2-x^2=(y-x)²/(y
化简:x^2-2xy+y^2/y^2-x^2
化简:x^2-2xy+y^2/y^2-x^2
化简:x^2-2xy+y^2/y^2-x^2
x^2-2xy+y^2/y^2-x^2
=(y-x)²/(y-x)(y+x)
=(y-x)/(x+y)
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您好:
x^2-2xy+y^2/y^2-x^2
=(y-x)^2/(y+x)(y-x)
=(y-x)/(y+x)
不明白,可以追问如有帮助,记得采纳
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