| x-3 |
| x+3 |
A.
| B.
| C.
| D.
|
答案:
A、| (x-3)+5 |
| (x+3)+5 |
| x+2 |
| x+8 |
B、
| x2-32 |
| x2+32 |
| x2-9 |
| x2+9 |
C、
| 2x-3 |
| 2x+3 |
| x-3 |
| x+3 |
D、
| (x-3)2 |
| x2-32 |
| (x-3)2 |
| (x+3)(x-3) |
| x-3 |
| x+3 |
故选D.

| x-3 |
| x+3 |
A.
| B.
| C.
| D.
|
答案:
A、| (x-3)+5 |
| (x+3)+5 |
| x+2 |
| x+8 |
| x2-32 |
| x2+32 |
| x2-9 |
| x2+9 |
| 2x-3 |
| 2x+3 |
| x-3 |
| x+3 |
| (x-3)2 |
| x2-32 |
| (x-3)2 |
| (x+3)(x-3) |
| x-3 |
| x+3 |