| a |
| 3 |
| x |
| x+q |
| q |
| 5 |
| a2-b2 |
| a-b |
| 2 |
| x |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 5+a |
| m-n |
| 5 |
| 4-y | ||
|
| 3a2 |
| π |
| x2 |
| 2x |
| 3 |
| 4 |
| x+3 |
| x-1 |
| a |
| m |
| 1 |
| x |
| x2-y2 |
| 2 |
| 1 |
| π |
| x2+1 |
| x2+2x+3 |
| x |
| y |
| m |
| n |
| a |
| b |
| 2a |
| 3b |
| x-y |
| x |
| x |
| x2-y2 |
| 4 |
| x |
| 2 |
| x |
| 4 |
| a |
| 1 |
| 3 |
| 3 |
| x-2 |
| 1 |
| y |
| a+2 |
| a-3 |
| 3x-2y |
| π |
| 2 |
| x |
| x+y |
| 5 |
| 1 |
| 2-a |
| x2y2 |
| 3-π |
| x2+y2 |
| π-1 |
| x |
| 2 |
| x(x+y) |
| 2-π |
| 2 |
| x |
| x+y |
| 5 |
| 1 |
| 2-a |
| x |
| π-1 |