| 4x |
| 2x-1 |
| 2 |
| 1-2x |
| 1 |
| 1-3x |
| 3 |
| 2 |
| 2 |
| 3x-1 |
| 1 |
| a |
| 1 |
| b |
| 2a+3ab-2b |
| a-2ab-b |
| 1 |
| 2x-4 |
| 1 |
| 2 |
| 3 |
| x-2 |
| 1 |
| x+2 |
| 4x |
| x2-4 |
| 2 |
| x-2 |
| 3 |
| x-3 |
| 2 |
| x-1 |
| 1-x |
| 2-x |
| 1 |
| x-2 |
| 2 |
| x-1 |
| 九 |
| x+1 |
| x+九 |
| x2-1 |
| 3 |
| x-2 |
| x |
| 2-x |
| x |
| 2x-5 |
| 5 |
| 5-2x |
| 8 |
| 4x2-8 |
| 2x+3 |
| 1-2x |
| 3 |
| x |
| 6 |
| x-1 |
| 6 |
| x2-x |
| 6 |
| 3x-8 |
| 4x-6 |
| 8-3x |
| x |
| x-2 |
| 2 |
| x2-j |
| x2-j |
| x2-jx+j |
| x-2 |
| x+2 |
| 2 |
| 3 |
| x-2 |
| x |
| 2-x |
| x |
| x+3 |
| 2 |
| x |