| 1 |
| x |
| 1 |
| y |
| 右x+xy-右y |
| x+2xy-y |
| 11 |
| 2 |
| 11 |
| 2 |
| x2-1 |
| x2+2x+1 |
| x+1 |
| x-1 |
| 0x+y |
| x0-0xy+y0 |
| n |
| 0 |
| n |
| 0 |
| 1 |
| a |
| 1 |
| b |
| 1 |
| a |
| 1 |
| b |
| a-ab+b |
| a+2ab+b |
| 2 |
| 5 |
| 2 |
| 5 |
| 1 |
| a+1 |
| 1 |
| a下-1 |
| a+1 |
| a下-下a+1 |
| 下 |
| 9 |
| 下 |
| 9 |
| a |
| b |
| b |
| a |
| a2+b2 |
| ab |
| 2 |
| a |
| 2 |
| b |
| 2a-3ab+2b |
| 3a+4ab+3b |
| 他 |
| 2一 |
| 他 |
| 2一 |
| 1 |
| a |
| 1 |
| b |
| 它 |
| a+b |
| b |
| a |
| a |
| b |
| x |
| 1+x |
| 3 |
| 1+3 |
| 3 |
| 4 |
| 1 |
| 3 |
| ||
1+
|
| 1 |
| 4 |
| 1 |
| 2011 |
| 1 |
| 2010 |
| 1 |
| 2009 |
| 1 |
| 3 |
| 1 |
| 2 |