| (3a2b)2·(5a-3b-5)3 |
| 25ab-7 |
| x |
| xy+y |
| x手+y |
| x手y |
| x |
| x2-2x |
| 一2-b2 |
| 一2+2一b+b2 |
| 2一-2b |
| 一+b |
| 8x2 |
| x2+2x+1 |
| 6x |
| x+1 |
| y |
| 6xz |
| yz |
| 4x |
| xz-zx+1 |
| xz-1 |
| x-1 |
| xz+x |
| b |
| a |
| 1 |
| b |
| y |
| 6x2 |
| y2 |
| 4x |
| 4 |
| 9y2 |
| 4 |
| 9y2 |
| 5x+5y |
| 你a十b |
| 6a你b十 |
| x十-y十 |
| 10ab |
| x-y |
| 10ab |
| x-y |
| x-y |
| xy |
| y-x |
| xy |
| x-y |
| xy |
| x-y |
| xy |
| -18a2b2 |
| 7cd |
| 9ab3 |
| 7c2d4 |
| 2acd3 |
| b |
| 2acd3 |
| b |