| 1 |
| 1×2 |
| 1 |
| 2 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| x(x+1) |
| 1 |
| (x+1)(x+2) |
| 1 |
| (x+2)(x+3) |
| 1 |
| (x+3)(x+4) |
| 3x+10 |
| x(x+4) |
| 2 |
| x-5 |
| 20 |
| x2-25 |
| 2 |
| x-3 |
| 3 |
| x |
| x |
| x-1 |
| 3 |
| 2x-2 |
| 12 |
| m2-9 |
| 2 |
| m-3 |
| 1 |
| 6x-2 |
| 1 |
| 2 |
| 2 |
| 1-3x |
| x-2 |
| x+2 |
| 16 |
| x2-4 |
|
| 2 |
| x-1 |
| 4 |
| x2-1 |
| 1 |
| x-1 |
| 1 |
| x+1 |
| 2 |
| 2x2-2 |
| 1 |
| 2 |
| 8 |
| x6-1 |
| x+3 |
| x-1 |
| x2-2x |
| x3-x |
| 2x-1 |
| x+1 |
| 1 |
| 6 |
| x2 |
| x-3 |
| 2x |
| 3-x |
| x |
| x-3 |
| 7 |
| 2x |
| x-1 |
| 5x-7 |
| x2-x |
| 1 |
| x |
| 3 |
| x-2 |
|