| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| x |
| 1 |
| 3y |
| 5 |
| 4 |
| xy+12y+4x |
| 12xy |
| 3 |
| x4-6x3-2x2+18x+23 |
| x2-8x+15 |
| 1 |
| 1+x+xy+xyz |
| 1 |
| 1+y+yz+yzt |
| 1 |
| 1+z+zt+ztx |
| 1 |
| 1+t+tx+txy |
| x+2 |
| x2-2x |
| x-1 |
| x2-4x+4 |
| x2-16 |
| x2+4x |
| 1 |
| (x-2)2 |
| 1 |
| (x-2)2 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| a |
| 1 |
| 1+a2 |
| 1 |
| a |
| 1 |
| 1+a2 |
| 1 |
| a |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| c |
| 1 |
| 9 |
| 1 |
| a |
| 1 |
| c |
| 1 |
| 15 |
| a2c |
| a2+2c+ac |
| 七5 |
| 31 |
| 七5 |
| 31 |
| ab2-二a3+b3-二a2b |
| 2a2+3ab+b2 |
| 着 |
| a |
| 着 |
| b |
| 着 |
| a+b |
| b |
| a |
| a |
| b |
| 1 |
| x |
| 2 |
| x2 |
| x4+x2+1 |
| 1 |
| 5 |
| 1 |
| 5 |