| 2 |
| x |
| 3 |
| x+1 |
| 1-x |
| x-2 |
| 1 |
| 2-x |
| 7 |
| x-2 |
| 5 |
| x |
| 1 |
| x-3 |
| x |
| 3-x |
| 1 |
| (x+1)(x+2) |
| 1 |
| x+1 |
| 1 |
| x+2 |
| 1 |
| (x+2)(x+3) |
| 1 |
| x+2 |
| 1 |
| x+3 |
| 1 |
| (x+3)(x+4) |
| 1 |
| x+3 |
| 1 |
| x+4 |
| 1 |
| (x+1)(x+2) |
| 1 |
| (x+2)(x+3) |
| 1 |
| (x+3)(x+4) |
| 1 |
| (x+9)(x+10) |
| 2 |
| 3x+30 |
| x |
| 3 |
| x-2 |
| 2 |
| 3 |
| 4-x |
| 1-x |
| x-4 |
|
|
| 2 |
| x |
| 3 |
| x+3 |
| 1-x |
| x-4 |
| 3 |
| 4-x |
| 1 |
| x-1 |
| 1 |
| x+1 |
| x |
| 2x2-2 |
| 1 |
| x2-1 |
| 2 |
| x+1 |
| 3 |
| x-1 |
| x |
| 2x-3 |
| 4 |
| 3-2x |
| x |
| x-2 |
| x-1 |
| x2-4 |
| x+1 |
| x-2 |
| 1 |
| x+1 |
| 2 |
| x+2 |
| 3 |
| x-2 |
| y+2 |
| y-1 |
| 6 |
| y2-1 |
| 2 |
| x2-1 |
| 1 |
| x-1 |
| 2(x+1)2 |
| x2 |
| x+1 |
| x |