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这道题24/(x+2)+24/(x-2)=5怎么解
人气:466 ℃ 时间:2020-03-26 05:10:03
解答
左右两边同时乘以x^2-4,得24(x-2)+24(x+2)=5(x^2-4),再展开得5x^2-48x-20=0,
再因式分解(x-10)(5x+2)=0 所以x1=10,x2=-2/5,且满足x不等于2和-2,
所以x1=10,x2=-2/5,
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