x²/x-5+25/5-x计算

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x²/x-5+25/5-x计算

x²/x-5+25/5-x计算
x²/x-5+25/5-x计算

x²/x-5+25/5-x计算
x²/x-5+25/5-x
=x²/x-5-25/x-5
=(x²-25)/(x-5)
=(x+5)(x-5)/(x-5)
=x+5