| a |
| a2-3a-1 |
| b |
| b2-3b-1 |
| c |
| c2-3c-1 |
| 4 |
| 9 |
| 33 |
| 2 |
| 33 |
| 2 |
| x-1 |
| x+1 |
| x+1 |
| x+2 |
| x+3 |
| x2+4x+4 |
| x+2 |
| x+1 |
| x+2 |
| x+1 |
| b+l |
| a |
| a+l |
| b |
| b-l |
| a |
| a-l |
| b |
| 2(a+b) |
| ab |
| 2(a+b) |
| ab |
| 2a |
| 3b |
| b |
| 4a3 |
| 1 |
| a3 |
| a |
| 6 |
| a |
| 6 |
| 3x |
| x-4y |
| x+y |
| 4y-x |
| 7y |
| x-4y |
| 4 |
| x+3 |
| x |
| x+1 |
| 2x |
| x+3 |
| 2x |
| x+3 |
| x2+x |
| x2+2x+1 |
| 1 |
| x+1 |
| 1 |
| x+1 |
| 1 |
| 1-多 |
| 多-1 |
| 多 |
| 多+1 |
| 多 |
| 多+1 |
| 多 |
| 1 |
| a-b |
| a+b |
| a-b |
| a2+ab+1 |
| a+b |
| a2+ab+1 |
| a+b |
| x-1 |
| x+1 |
| x+1 |
| x+2 |
| x+3 |
| x2+4x+4 |