化简x/y(x+y)-y/x(x+y)
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化简x/y(x+y)-y/x(x+y)化简x/y(x+y)-y/x(x+y)化简x/y(x+y)-y/x(x+y)x/y(x+y)-y/x(x+y)=x^2/xy(x+y)-y^2/xy(x+y)=x
化简x/y(x+y)-y/x(x+y)
化简x/y(x+y)-y/x(x+y)
化简x/y(x+y)-y/x(x+y)
x/y(x+y)-y/x(x+y) =x^2/xy(x+y) -y^2/xy(x+y) =x^2-y^2/xy(x+y) =(x+y)(x-y)/xy(x+y) =x-y/xy