分式不等式解法(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 09:32:51
分式不等式解法(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0

分式不等式解法(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0
分式不等式解法
(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0
x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0

分式不等式解法(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0
分子分母约分得:(x+5)/(x+2)>0
即等价于(x+5)(x+2)>0
那么解是x>-2或x

这个用数轴标根法就可以解决

x>-2或x<-5