计算:12/m^2-9-2/m-3

学习 时间:2026-05-30 14:36:06 阅读:9059
计算:12/m^2-9-2/m-3

最佳回答

忧虑的墨镜

含糊的羽毛

2026-05-30 14:36:06

=12/(m+3)(m-3)-2/(m-3)=(12-2(m+3))/(m+3)(m-3)=(6-2m)/(m+3)(m-3)=-2/(m+3)

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  • 会撒娇的咖啡豆
    回复
    2026-05-30 14:36:06

    =12/(m+3)(m-3)-2/(m-3)=(12-2(m+3))/(m+3)(m-3)=(6-2m)/(m+3)(m-3)=-2/(m+3)

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