化简x^/y-x-y^/y-x求详细过程 步骤

问题描述:

化简x^/y-x-y^/y-x
求详细过程 步骤

x²/(y-x)-y²/(y-x)
=(x²-y²)/(y-x)
=(x+y)(x-y)/-(x-y)
=-(x+y)
=-x-y

原式=(x²-y²)/(y-x)
=(x+y)(x-y)/[-(x-y)]
=-(x+y)
=-x-y