1.-2x+1>02.ax+1<03.(x-2)(x+3)>04.2x^2+3x-9≤05.x-2/x+3≤06.x-2/x+3>07.-x^2-x+6≥08.|x-3|≥19.|2x-1|≤310.x^2+x+1≤0结果表示用集合麻烦写写过程.

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 06:33:23
1.-2x+1>02.ax+1<03.(x-2)(x+3)>04.2x^2+3x-9≤05.x-2/x+3≤06.x-2/x+3>07.-x^2-x+6≥08.|x-3|≥19.|2x-1|≤310.x^2+x+1≤0结果表示用集合麻烦写写过程.

1.-2x+1>02.ax+1<03.(x-2)(x+3)>04.2x^2+3x-9≤05.x-2/x+3≤06.x-2/x+3>07.-x^2-x+6≥08.|x-3|≥19.|2x-1|≤310.x^2+x+1≤0结果表示用集合麻烦写写过程.
1.-2x+1>0
2.ax+1<0
3.(x-2)(x+3)>0
4.2x^2+3x-9≤0
5.x-2/x+3≤0
6.x-2/x+3>0
7.-x^2-x+6≥0
8.|x-3|≥1
9.|2x-1|≤3
10.x^2+x+1≤0
结果表示用集合
麻烦写写过程.

1.-2x+1>02.ax+1<03.(x-2)(x+3)>04.2x^2+3x-9≤05.x-2/x+3≤06.x-2/x+3>07.-x^2-x+6≥08.|x-3|≥19.|2x-1|≤310.x^2+x+1≤0结果表示用集合麻烦写写过程.
1.-2x+1>0
x<1/2
2.ax+1<0
1)a=0 1<0
2)a>0 x<-1/a
3)a<0 x>-1/a
3.(x-2)(x+3)>0
x>2 OR x<-3
4.2x^2+3x-9≤0
(x+3)(2x-3)≤0
-3≤x≤3/2
5.x-2/x+3≤0

6.x-2/x+3>0
x<-3 OR x>2
7.-x^2-x+6≥0
(x+3)(x-2)<=0
-3≤x≤2
8.|x-3|≥1
x-3>=1 OR x-3<=-1
x>=4 OR x<=2
9.|2x-1|≤3
-3≤2x-1≤3
-1≤x≤2
10.x^2+x+1≤0
无解