| 6 |
| x |
| x+y |
| m |
| 1 |
| 6-a |
| x |
| π-1 |
| x |
| 6x+1 |
| y |
| 6 |
| 3 |
| x |
| 1 |
| 6 |
| x2+y2 |
| 2 |
| 1+y |
| x-y |
| 4 |
| a |
| 1 |
| x |
| a+b |
| 3 |
| 3x |
| 2π |
| a2-b2 |
| a+b |
| 1 |
| 5+m |
| a2 |
| a |
| x |
| 2 |
| x+1 |
| x |
| b+c |
| a |
| x-2 |
| π |
| 3x2y |
| 2x |
| 1 |
| a |
| 2xy |
| π |
| 3a2b3c |
| 4 |
| 5 |
| 6+x |
| x |
| 7 |
| y |
| 8 |
| 1 |
| a |
| 3a2b3c |
| 4 |
| k |
| 6+x |
| x |
| 7 |
| y |
| 8 |
| 10 |
| y |
| x3 |
| y |
| x5 |
| y2 |
| x7 |
| y3 |
| x9 |
| y4 |
| 4 |
| x-y |
| 5b |
| 3a |
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| xy |
| a |
| 5+π |
| 左 |
| a |
| 2+y |
| π |
| 72 |
| 3 |
| 2 |
| 2+左 |
| 2(2+左) |
| 2 |
| 2 |
| x |
| a |
| 3 |
| m+n |
| m-n |
| x2 |
| x |