3/(x-1)²-3x/(x-1)² 计算

学习 时间:2026-06-05 21:48:17 阅读:7187
3/(x-1)²-3x/(x-1)² 计算

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2026-06-05 21:48:17

3/(x-1)²-3x/(x-1)²=(3-3x)/(x-1)²=3(1-x)/(1-x)²=3/(1-x)