| 3 |
| gab |
| 1 |
| 4ag |
| g |
| 1-a |
| 1 |
| (a-1)g |
| 12 |
| m2-9 |
| 2 |
| 3-m |
| 2 |
| m+3 |
| x2 |
| x-1 |
| x-18 |
| x2-4 |
| 4 |
| 2-x |
| x-18 |
| (x-2)(x+2) |
| 4 |
| x-2 |
| x-18 |
| (x-2)(x+2) |
| 4(x+2) |
| (x-2)(x+2) |
| 1 |
| a4 |
| 2x-6y |
| 4xyz |
| 5x-6y-xy |
| 4xyz |
| 3x |
| 4xyz |
| a+b |
| a |
| a-b |
| a |
| a+b-a-b |
| a |
| x |
| (x-1)2 |
| 1 |
| (1-x)2 |
| x |
| (x-1)2 |
| 1 |
| (x-1)2 |
| x-1 |
| (x-1)2 |
| 1 |
| x-1 |
| 1 |
| xy2 |
| 1 |
| 2y2 |
| 1 |
| 2(x2+y2) |
| c |
| a+b |
| c |
| a-b |
| 2c |
| a2+b2 |
| 1 |
| x+1 |
| 4 |
| x2-1 |
| x+1 |
| x-1 |
| 2 |
| 1-a |
| a2+2a-3 |
| (a-1)2 |
| 1 |
| 1+x |
| 2x |
| 1-x2 |
| b |
| a-b |
| -a+2b |
| a-b |
| x+3y |
| x2-y2 |
| x+2y |
| x2-y2 |
| 2x-3y |
| x2-y2 |