化简:(x+2/x^2-4x+4)-(1/2x+4)-(x-1/2x^2-8)
问题描述:
化简:(x+2/x^2-4x+4)-(1/2x+4)-(x-1/2x^2-8)
答
(x+2/x^2-4x+4)-(1/2x+4)-(x-1/2x^2-8)
=--
=--
=--
=(15x+2)/2(x+2)(x-2)^2