x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)

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x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)x2-x1+{-(x2-x1

x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)
x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)

x2-x1+{-(x2-x1)/x2x1}怎么分解成(x2-x1)(1-1/x2x1)
提取公因式(x2-x1)就可以了