(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)
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(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)
![(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)](/uploads/image/z/16475338-10-8.jpg?t=%28xy-x%26%23178%3B%29%C3%B7%28x%26%23178%3B-2xy%2By%26%23178%3B%2Fxy%29%C3%97%EF%BC%88x-y%2Fx%26%23178%3B%EF%BC%89)
(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)
=-x(x-y)÷(x-y)²/xy x (x-y)/x²
=-y
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=-x(x-y)÷(x-y)²/xy x (x-y)/x²
=-y
手机提问的朋友在客户端右上角评价点【满意】即可.
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
计算:(xy-x²)×x-y/xy
x²/xy-x/y
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
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