题目列表(包括答案和解析)
| x-3 |
| x2-1 |
| 3 |
| 1-x |
| x-3 |
| (x+1)(x-1) |
| 3 |
| x-1 |
| x-3 |
| (x+1)(x-1) |
| 3(x+1) |
| (x+1)(x-1) |
| x-3 |
| x2-1 |
| 3 |
| 1-x |
| x-3 |
| (x-1)(x+1) |
| 3 |
| x-1 |
| x-3 |
| (x-1)(x+1) |
| 3(x+1) |
| (x-1)(x+1) |
| x-3 |
| x2-1 |
| 3 |
| 1-x |
| x-3 |
| (x+1)(x-1) |
| 3 |
| x-1 |
| x-3 |
| (x+1)(x-1) |
| 3(x+1) |
| (x+1)(x-1) |
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