问题:
若(2x-1)(3x+5)=0,则3x 2+
7
2
x-
3
2
=( )
A.1
B.-
5
2
C.
38
3
D.1或
38
3
若(2x-1)(3x+5)=0,则3x 2+
x-
=( )
7 |
2 |
3 |
2 |
A.1 | B.-
|
C.
|
D.1或
|
参考答案: