(m-n)*根号下(8mn/m^3-2m^2n+mn^2) (0
问题描述：
(m-n)*根号下(8mn/m^3-2m^2n+mn^2) (0
数学人气：612 ℃时间：2020-01-28 09:41:01
优质解答
(m-n)*根号下(8mn/m^3-2m^2n+mn^2)
=(m-n)*根号下[8n/(n-m)^2]
= -2根号下(2n)
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答
(m-n)*根号下(8mn/m^3-2m^2n+mn^2)
=(m-n)*根号下[8n/(n-m)^2]
= -2根号下(2n)