7/(x²+x)+1/(x²-1)=2/(x²-x) 解方程
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7/(x²+x)+1/(x²-1)=2/(x²-x) 解方程
7/(x²+x)+1/(x²-1)=2/(x²-x) 解方程
7/(x²+x)+1/(x²-1)=2/(x²-x) 解方程
过程在图片上