x^/y-x-y^/y-x化简.
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x^/y-x-y^/y-x化简.
x^/y-x-y^/y-x化简.
x^/y-x-y^/y-x化简.
原式
=(x²-y²)/(y-x)
=(x+y)(x-y)/[-(x-y)]
=-(x+y)
=-x-y
亲,能把题目拍下来吗
x^/y-x-y^/y-x化简.
x^/y-x-y^/y-x化简.
x^/y-x-y^/y-x化简.
原式
=(x²-y²)/(y-x)
=(x+y)(x-y)/[-(x-y)]
=-(x+y)
=-x-y
亲,能把题目拍下来吗