| ab |
| a2-b |
| pm2 |
| am-b |
| pm |
| a |
| 3 |
| 2 |
| 2a-ab-b2+2 |
| a2+ab+b-1 |
| 2 |
| x2-2x-9 |
| x3-11x-15 |
| x |
| yz |
| y |
| zx |
| z |
| xy |
| 7 |
| 3 |
| 7 |
| 3 |
| a |
| bc |
| b |
| ac |
| c |
| ab |
| 1 |
| a |
| 1 |
| b |
| 1 |
| c |
| 1 |
| 8 |
| 1 |
| 8 |
| x |
| 3 |
| y |
| 4 |
| z |
| 5 |
| x+4y+2z |
| 8x+y+6z |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| x |
| 1 |
| y |
| 2x-5xy-2y |
| y+3xy-x |
| 11 |
| 6 |
| 11 |
| 6 |
| 1 |
| ab |
| 1 |
| (a+1)(b+1) |
| 1 |
| (a+2)(b+2) |
| 1 |
| (a+12)(b+12) |
| 143 |
| 210 |
| 143 |
| 210 |
| (x-a)(y-a)+(y-a)(z-a)+(z-a)(x-a) |
| (x-a)2+(y-a)2+(z-a)2 |
| 1 |
| 2 |
| 1 |
| 2 |
| a |
| |a| |
| b |
| |b| |
| c |
| |c| |
| 1 |
| b |
| 1 |
| c |
| 1 |
| c |
| 1 |
| a |
| 1 |
| a |
| 1 |
| b |