1/(x-1)x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3),化简

发布时间:2019-08-28 21:16:43

1/(x-1)x+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3),化简

推荐回答

原式=1/(x-1)-1/x+1/x-1/(x+1)+1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3) =1/(x-1)-1/(x+3) =4/(x-1)*(x+3)
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