15-2x |
5x+2 |
A.{x|-
| B.{x|x<-
| ||||||||
C.{x|-
| D.{x|x≤-
|
15-2x |
5x+2 |
|
|
|
|
2 |
5 |
15 |
2 |
15-2x |
5x+2 |
2 |
5 |
15 |
2 |
|
A.(-3,1)∪(3,+∞) | B.(-3,1)∪(2,+∞) | C.(-1,1)∪(3,+∞) | D.(-∞,-3)∪(1,3) |
A.{x|x<-1或x>1} | B.{x|x<-2或x>1} | C.{x|-2<x<1} | D.{x|-1<x<2} |
1 |
2 |
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