| 100 |
| x |
| 100 |
| y |
| 100 |
| x |
| 100 |
| y |
| x+y |
| 2 |
| x+y |
| 2 |
| 2xy |
| x+y |
| 2xy |
| x+y |
| x2 |
| x+y |
| a+b |
| a-b |
| a |
| b-a |
| x |
| x-2 |
| x |
| x+2 |
| x2-4 |
| x |
| x+1 |
| x-1 |
| x-1 |
| x+1 |
| x |
| x2-1 |
| a3 |
| b |
| b3 |
| a2 |
| 4 |
| x2-9 |
| 2x+6 |
| x2+6x+9 |
| 2 |
| x+3 |
| x-4 |
| x2-9 |
| 10x-19 |
| x2-8x+16 |
| 1 |
| x-3 |
| 1-a |
| a |
| 1 |
| a |
| 4 |
| a2-4 |
| 1 |
| 2-a |
| x9-m9 |
| x |
| x9+m9 |
| x |
| 9x-1m-1(x+m) |
| x-1+m-1 |
| 上00 |
| m |
| 上00 |
| 十 |
| 上00 |
| m |
| 上00 |
| 十 |
| 2 |
| m+十 |
| 2 |
| m+十 |
| 2 | ||||
|
| 2m十 |
| m+十 |
| 2 | ||||
|
| 2m十 |
| m+十 |