题目内容
计算:
÷
•
.
| x+2 |
| x2-6x+9 |
| 1 |
| 3-x |
| x-3 |
| x+2 |
| x+2 |
| x2-6x+9 |
| 1 |
| 3-x |
| x-3 |
| x+2 |
=
| x+2 |
| (x-3)2 |
| x-3 |
| x+2 |
=-1.
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计算x3÷(2x2)的结果是( )
A、
| ||
| B、2x | ||
C、
| ||
D、
|
题目内容
| x+2 |
| x2-6x+9 |
| 1 |
| 3-x |
| x-3 |
| x+2 |
| x+2 |
| x2-6x+9 |
| 1 |
| 3-x |
| x-3 |
| x+2 |
| x+2 |
| (x-3)2 |
| x-3 |
| x+2 |
A、
| ||
| B、2x | ||
C、
| ||
D、
|