| x |
| 3 |
| x |
| x |
| 1 |
| 2 |
| 1 |
| a |
| 2x |
| π-1 |
| m-n |
| m+n |
| 1 |
| y |
| x-y |
| x |
| a+b |
| 2 |
| x2-xy |
| x |
| 2x |
| π+1 |
| 3x+1 |
| x2-(x+1)(x-1) |
| 4 |
| y |
| y |
| 4 |
| 6 |
| x+y |
| x+y |
| 2 |
| 4 |
| a |
| 2x-3y |
| 5 |
| 1 |
| 3 |
| x+y |
| x-y |
| 2 |
| x |
| 多 |
| x |
| fb2 |
| 5 |
| m+n |
| m |
| b-c |
| 5+f |
| 3x2 |
| π |
| 1 |
| a |
| 2xy |
| π-1 |
| 5 |
| 6x |
| x |
| 7 |
| y |
| 8 |
| x2 |
| x |
| 10 |
| y |
| 右 |
| x |
| 右 |
| x-y |
| x-2 |
| x2+右 |
| x-y |
| 4 |
| x-右 |
| π |
| x+y |
| m |
| 2a |
| a |
| x |
| 3 |
| y+3 |
| y |
| a+b |
| 3 |
| m-n |
| m+n |
| 2y |
| π |
| x2-1 |
| x |
| 2 |
| x |
| a |
| 3 |
| m+n |
| m-n |
| x2 |
| x |