| x2 |
| x-y |
| y2 |
| x-y |
|
| 3x2-3y2 |
| x2+2xy+y2 |
| a+3b |
| av-9bv |
| a3-4abv |
| a3-4avb+4abv |
| 7 |
| v |
| ||||
| 0.4x-0.5 |
| x |
| 2 |
| y |
| 3 |
| 7x2-y2 |
| x2-2xy+3y2 |
| y+1 |
| x+1 |
| x+1 |
| y+1 |
| a2-b2 |
| a-2ab+b2 |
| a2+b2+2ab |
| b-a |
| 3x-3 |
| x2-1 |
| 3x |
| x+1 |
| 1 |
| x+1 |
| x2+2x+1 |
| x+2 |
| x2-1 |
| x-1 |
| 1 |
| x+2 |
| 1 |
| 2 |
| 2b2 |
| a-b |
| 3 |
| x-1 |
| x+2 |
| 2x-2 |
| 1 |
| a-1 |
| 1 |
| a+1 |
| a |
| 1-a2 |
| x2-9 |
| x2+6x+9 |
| 3x3+9x2 |
| x2-3x |
| 1 |
| 3 |
| 2x |
| x3+2x2+x |
| x-1 |
| x2+x |
| 4x2-1 |
| 2-4x |
| 4x2+4x+1 |
| x |
| 1 |
| 4 |