题目列表(包括答案和解析)
| a2-b2 |
| a2-ab |
| 1 |
| a |
|
| 2ab-b2 |
| a |
| a2+ab |
| a2-b2 |
| 3 |
| m-3 |
| 3m2-6m |
| 5 |
| m-2 |
| x |
| x-1 |
| x |
| x2-1 |
| x2-x |
| x2-2x+1 |
| 2ab-b2 |
| a |
| a2+ab |
| a2-b2 |
| 3 |
| m-3 |
| 3m2-6m |
| 5 |
| m-2 |
| x |
| x-1 |
| x |
| x2-1 |
| x2-x |
| x2-2x+1 |
| x2 |
| x-2 |
| 4 |
| x-2 |
| 1 |
| x2+2x |
| 1 |
| 4 |
|
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