| 1 |
| p-2 |
| 3-p |
| 2-p |
|
| 1 |
| 2 |
| 2 |
| 4 |
| x |
| x-1 |
| -x+2 |
| x(x-1) |
| 3 |
| 2x-4 |
| x |
| 2-x |
| 4x |
| 2x-1 |
| 2 |
| 1-2x |
| 1 |
| x-3 |
| x |
| 3-x |
| 1 |
| x-1 |
| 2x |
| 1-x |
| x |
| x-2 |
| 2 |
| x2-7 |
| 二 |
| 3x-8 |
| 7x-7 |
| 8-3x |
| 1 |
| x-4 |
| 4 |
| x2-16 |
| x |
| 2x-3 |
| 5 |
| 3-2x |
| 3 |
| 3x-1 |
| 2x |
| 2x2-5 |
| 3 |
| x-5 |
| x+2 |
| x-5 |
| x+1 |
| x-1 |
| 4 |
| x2-1 |
| 2x |
| x+3 |
| 7 |
| 2x+6 |
| 10x-4 |
| x(x2-1) |
| 6 |
| x2-1 |
| x |
| 2x-5 |
| 5 |
| 5-2x |
| x |
| x-2 |
| 2 |
| x2-4 |