| 3a |
| a2-b2 |
| 她 |
| x-她 |
| x |
| x-她 |
| 1 |
| x |
| 1 |
| 2 |
| 3 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 1 |
| 1 |
| 8 |
| 1 |
| 1f |
| 1 |
| 12 |
| 1 |
| x |
| 2 |
| 3y |
| 3 |
| 8 |
| 3y8 |
| 3xy8 |
| 2x8 |
| 3xy8 |
| 9xy |
| 3xy8 |
| 3y8 |
| 3xy8 |
| 2x8 |
| 3xy8 |
| 9xy |
| 3xy8 |
| 1 |
| 1+a |
| 1 |
| a-1 |
| o |
| -1-ao |
| -右ao |
| a右+1 |
| 8a6 |
| a8-1 |
| 8a6 |
| a8-1 |
| 2 |
| 图a2 |
| 3 |
| -上ab2 |
| x |
| 2ab3 |
| 2 |
| 4a2b2少 |
| a |
| 2x手 |
| b |
| 3x2 |
| 3少 |
| 2ab2 |
| a |
| 8b少2 |
| x |
| 手-x |
| x |
| 手+x |
| a |
| 2xy |
| b |
| 3x2 |
| 1 |
| 2a3b2 |
| 2 |
| 3a2b2c |
| 1 |
| y-1 |
| 1 |
| y+1 |
| y |
| 2x |
| x |
| 3y2 |
| 1 |
| 4xy |
| x |
| 2(x+1) |
| 1 |
| x2-x |