有这样一道题,计算(x²+x)(x²-2x+1)/(x²-1)(x²-x)

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有这样一道题,计算(x²+x)(x²-2x+1)/(x²-1)(x²-x)
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有这样一道题,计算(x²+x)(x²-2x+1)/(x²-1)(x²-x)
有这样一道题,计算(x²+x)(x²-2x+1)/(x²-1)(x²-x)

有这样一道题,计算(x²+x)(x²-2x+1)/(x²-1)(x²-x)

(x2+x)(x2-2x+1)/(x2-1)(x2-x)
=x(x+1)(x-1)2/x(x-1)2(x+1)
=1

=x(x+1)(x-1)²/(x+1)(x-1)x(x-1)
=1
望采纳.