| 3 |
| x-1 |
| 4 |
| x |
| 1 |
| x-2 |
| x-1 |
| x-2 |
|
| 2 |
| x |
| 3 |
| x+3 |
| 1-x |
| x-4 |
| 3 |
| 4-x |
| 1 |
| x-1 |
| 1 |
| x+1 |
| x |
| 2x2-2 |
| x |
| 3 |
| x-2 |
| 2 |
| 3 |
| 4-x |
| 1-x |
| x-4 |
|
| 2 |
| x+2 |
| 3x |
| x2-4 |
| 1 |
| x-2 |
| 7 |
| x+x2 |
| 3 |
| x-x2 |
| x2-7 |
| x2-1 |
| x |
| 2-x |
| 2 |
| x2-4 |
| x+1 |
| x-2 |
| 1 |
| x+1 |
| 2 |
| x+2 |
| 3 |
| x-2 |
| 5 |
| x-2 |
| 3 |
| x |
| 1 |
| x-1 |
| 2 |
| x2-1 |
| 5x-4 |
| x-2 |
| 4x+10 |
| 3x-6 |
| 1 |
| x-1 |
| 2x |
| 1-x |
| 7 |
| x2+x |
| 1 |
| x2-x |
| 6 |
| x2-1 |
| 4 |
| x+2 |