1/(m^2-m)+(m-5)/(2m^2-2) 分式计算

学习 时间:2026-04-03 11:54:48 阅读:148
1/(m^2-m)+(m-5)/(2m^2-2) 分式计算

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2026-04-03 11:54:48

1/(m^2-m)+(m-5)/(2m^2-2) =1/[m(m-1)]+(m-5)/[2(m+1)(m-1)]=2(m+1)/[2m(m+1)(m-1)]+m(m-5)/[2m(m+1)(m-1)]=[2(m+1)+m(m-5)]/[2m(m+1)(m-1)]=(m²-3m+2)/[2m(m+1)(m-1)]=(m-1)(m-2)/[2m(m+1)(m-1)]=(m-2)/[2m(m+1)]

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  • 紧张的微笑
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    2026-04-03 11:54:48

    1/(m^2-m)+(m-5)/(2m^2-2) =1/[m(m-1)]+(m-5)/[2(m+1)(m-1)]=2(m+1)/[2m(m+1)(m-1)]+m(m-5)/[2m(m+1)(m-1)]=[2(m+1)+m(m-5)]/[2m(m+1)(m-1)]=(m²-3m+2)/[2m(m+1)(m-1)]=(m-1)(m-2)/[2m(m+1)(m-1)]=(m-2)/[2m(m+1)]

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