(2X-3)/X+1如何化简成2-(5/x+1)(要步骤)
问题描述:
(2X-3)/X+1如何化简成2-(5/x+1)(要步骤)
答
(2X-3)/(X+1)
=(2x+2-2-3)/(x+1)
=2(x+1)/(x+1)-5/(x+1)
=2-5/(x+1)
=2-(5/(x+1))