解几个不等式(1)a(x+3)(x-2)<0(2)x^2-(a+1)x+a>0(3)x(x-1)≤03x^2-7x+2>0(4)2x^2-3x>2x-(2x+3)/2>1(3)(4)题为不等式组

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/24 19:11:28
解几个不等式(1)a(x+3)(x-2)<0(2)x^2-(a+1)x+a>0(3)x(x-1)≤03x^2-7x+2>0(4)2x^2-3x>2x-(2x+3)/2>1(3)(4)题为不等式组解几个

解几个不等式(1)a(x+3)(x-2)<0(2)x^2-(a+1)x+a>0(3)x(x-1)≤03x^2-7x+2>0(4)2x^2-3x>2x-(2x+3)/2>1(3)(4)题为不等式组
解几个不等式
(1)a(x+3)(x-2)<0
(2)x^2-(a+1)x+a>0
(3)x(x-1)≤0
3x^2-7x+2>0
(4)2x^2-3x>2
x-(2x+3)/2>1
(3)(4)题为不等式组

解几个不等式(1)a(x+3)(x-2)<0(2)x^2-(a+1)x+a>0(3)x(x-1)≤03x^2-7x+2>0(4)2x^2-3x>2x-(2x+3)/2>1(3)(4)题为不等式组
(1)a(x+3)(x-2)<0
-3<x<2
(2)x^2-(a+1)x+a>0
(x-a)(x-1)>0
if a=1 x!=1(不等于)
if a>1 x>a或x<1
if a<1 x>1或x<a
(3)x(x-1)≤0
0≤x≤1
3x^2-7x+2>0
(3x-1)(x-2)>0
x<1/3或x>2
0≤x<1/3
(4)2x^2-3x>2
2x^2-3x-2>0
(2x+1)(x-2)>0
x<-1/2或x>2
x-(2x+3)/2>1 解不了
题错了