| 2x+1 |
| x-1 |
| 1-2x |
| x-1 |
| A、1 | ||
B、
| ||
| C、-1 | ||
| D、0 |
科目：初中數學 來源： 題型：
| 8 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| x-1 |
| x+1 |
| x2 |
| x-1 |
| 3 |
| x+1 |
| 2x |
| x2+1 |
| x-1 |
| x+1 |
| (x+1)-2 |
| x+1 |
| 2 |
| x+1 |
| x2 |
| x-1 |
| x2-1+1 |
| x-1 |
| (x+1)(x-1)+1 |
| x-1 |
| 1 |
| x-1 |
| x-1 |
| x+2 |
| 2x-1 |
| x+1 |
| 2x2-1 |
| x+1 |
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