计算:a²/a-1-a-1.最好有详细计算过程
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a²/a-1-a-1
=a²/a-1-(a+1)
=[a²-(a+1)(a-1)]/(a-1)
=(a²-a²+1)/(a-1)
=1/(a-1)
=a²/a-1-(a+1)
=[a²-(a+1)(a-1)]/(a-1)
=(a²-a²+1)/(a-1)
=1/(a-1)
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a²/a-1-a-1
=a²/a-1-(a+1)
=[a²-(a+1)(a-1)]/(a-1)
=a²-(a²-1)/a-1
=(a²-a²+1)/a-1
=1/(a-1)
八年级的题!!
=a²/a-1-(a+1)
=[a²-(a+1)(a-1)]/(a-1)
=a²-(a²-1)/a-1
=(a²-a²+1)/a-1
=1/(a-1)
八年级的题!!
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