x/2(x+1),1/x^2-x通分

发布时间:2021-03-16 04:16:07

x/2(x+1),1/x^2-x通分

网友回答

x/[2(x+1)]=x*x(x-1)/[2x(x+1)(x-1)]=x^2(x-1)/[2x(x+1)(x-1)]
1/(x^2-x)=1/[x(x-1)]=2(x+1)/[2x(x+1)(x-1)]
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