| 2x+1 |
| x-3 |
| 4x-5 |
| x-3 |
| x2-3x |
| x2-2x+1 |
| x+1 |
| 1-x |
| 2 |
| x-1 |
| x+1 |
| x-5 |
| 1 |
| 5-x |
| 1 |
| x-2 |
| 1-x |
| 2-x |
| x |
| x-3 |
| 10 |
| x2-9 |
| k |
| x-2 |
| 1 |
| x |
| x+1 |
| x-1 |
| k |
| x2-1 |
| 1 |
| 2x-4 |
| 1 |
| 2 |
| 3 |
| x-2 |
| 1 |
| x+2 |
| 4x |
| x2-4 |
| 2 |
| x-2 |
| 1 |
| 2x |
| 2 |
| x+3 |
| x |
| x-1 |
| 3 |
| (x-1)(x+2) |
| 3x |
| x-5 |
| 10 |
| x-5 |
| x |
| x-2 |
| 2 |
| x2-4 |
| 2 |
| x-3 |
| 1 |
| x |
| 1 |
| x-2 |
| 1-x |
| 2-x |
| x-1 |
| x-4 |
| 3 |
| x-4 |
| 3 |
| 2x-2 |
| 1 |
| 1-x |
| x |
| x-1 |
| 3 |
| (x-1)(x+2) |
| 2 |
| x-2 |
| 3 |
| x |
| 1 |
| x-2 |
| x-1 |
| 2-x |
| 1 |
| x2+3x |
| 2 |
| x2-9 |
| 1 |
| x2-3x |