2X+2+5除以（X-1）分式加减
人气：216 ℃ 时间：2020-04-10 07:05:37
解答
通分原式=[(2x+2)(x-1)+5]/(x-1)
=(2x²-2+5)/(x-1)
=(2x²+3)/(x-1)
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