| k |
| x-i |
| q |
| x |
| x-8 |
| x-k |
| i |
| k-x |
| x |
| x+1 |
| 1 |
| 3x+3 |
| 2x |
| 2x-5 |
| 2 |
| 2x+5 |
| 1 |
| x-3 |
| 2-x |
| 3-x |
| 2x+1 |
| x(x2-1) |
| 1 |
| x2-1 |
| 1 |
| 2x |
| 2 |
| x+3 |
| 1-x |
| 2-x |
| 1 |
| x-2 |
| 5 |
| x2+x |
| 1 |
| x2-x |
| x |
| 2x-5 |
| 5 |
| 5-2x |
| 2-x |
| x-3 |
| 1 |
| 3-x |
| 1 |
| 1-x2 |
| -3 |
| x-1 |
| 5 |
| 1+x |
| -a |
| b |
| 2a2 |
| 5b |
| a |
| 5b |
| 16-a2 |
| a2+8a+16 |
| a-4 |
| 2a+8 |
| a-2 |
| a+2 |
| 1 |
| x-2 |
| 1-x |
| 2-x |
| 2 |
| x+3 |
| 3 |
| 2 |
| 7 |
| 2x+6 |
| 7 |
| x2+x |
| 3 |
| x-x2 |
| 7-x2 |
| x2-1 |
| 2-x |
| x-3 |
| 2 |
| 3-x |
| 1 |
| x+1 |
| 2 |
| x-1 |
| 4 |
| x2-1 |
| u6 |
| 3 |
| x |
| 2 |
| x-u |
| 3x |
| x-1 |
| 2 |
| 1-x |
|
| x |
| x-2 |
| 6 |
| x+2 |
| 1 |
| x |
| 2 |
| x-1 |