(2x-1)除以(x+3)大于等于1,怎么解

问题描述:

(2x-1)除以(x+3)大于等于1,怎么解

(2x-1)/(x+3)-1>=0
(2x-1-x-3)/(x+3)>=0
(x-4)/(x+3)>=0
等价于(x-4)(x+3)>=0且x+3不等于0
∴x>=4或x