化简:(x+y)²/x²-y²

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化简:(x+y)²/x²-y²

化简:(x+y)²/x²-y²
化简:(x+y)²/x²-y²

化简:(x+y)²/x²-y²
=(x+y)(x+y)/(x+y)(x-y)=(x+y)/(x-y)