化简分式x平方+2x/x平方-4-2/x-2
问题描述：
化简分式x平方+2x/x平方-4-2/x-2
答
(x² + 2x)/(x² -4)-2/(x-2)
= x(x-2)/(x+2)(x-2)-2/(x-2)
= x/(x-2) - 2/(x-2)
= (x-2)/(x-2)
= 1