2m^2-8≠0m≠±2
2m^2+6m≠0 m≠-3
化简,提取公因式,合并
(m-2)/(2m^2-8)-m/(2m^2+6m)
(m-2)/(2m^2-8)-m/(2m^2+6m)
数学人气:289 ℃时间:2020-04-12 14:16:58
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