| a2b2c2 |
| a3+b3+c3 |
| 1 |
| a3 |
| 1 |
| b3 |
| 1 |
| c3 |
| a |
| |a| |
| b |
| |b| |
| c |
| |c| |
| abc |
| |abc| |
| 1 |
| b |
| 1 |
| c |
| 1 |
| c |
| 1 |
| a |
| 1 |
| a |
| 1 |
| b |
| a |
| a-1 |
| 1 |
| a+1 |
| 1 |
| a2-1 |
| a2x-a-2x |
| ax-a-x |
| a-的 |
| 的 |
| ab |
| 的 |
| (a+的)(b+的) |
| 的 |
| (a+2)(b+2) |
| 的 |
| (a+2005)(b+2005) |
| 1 |
| ab |
| 1 |
| (a+1)(b+1) |
| 1 |
| (a+2)(b+2) |
| 1 |
| (a+2008)(b+2008) |
| 1 |
| (a-1)(b+1) |
| 1 |
| (a-2)(b+2) |
| 1 |
| (a-2000)(b+2000) |
| 2 |
| a2+b2-c2 |
| 2 |
| b2+c2-a2 |
| 2 |
| c2+a2-b2 |
| (x-2)3-(x-1)2+1 |
| x2-4x+4 |
| 2x |
| 2x2-4x |