| 1 |
| x+1 |
| 1 |
| y+1 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| x-y |
| 1 |
| x+y |
| x2y |
| x2-y2 |
| 3 |
| 3 |
| b |
| a |
| a |
| b |
| 1 |
| a |
| 1 |
| b |
| 2a+2 |
| a-1 |
| a2-1 |
| a2-2a+1 |
| x+y |
| x |
| x+2y |
| 2x-y |
| 1 |
| a |
| 1 |
| b |
| a-2ab-b |
| 2a-2b+7ab |
| 2 |
| 15 |
| 2 |
| 15 |
| 1 |
| (x+2)(x+5) |
| 1 |
| (x+5)(x+8) |
| 1 |
| (x+8)(x+11) |
| 1 |
| (x+56)(x+59) |
| -a2+4b2 |
| -4b2-a2+4ab |
| 3 |
| 4 |
| 3 |
| 2 |
| (2a-a2)(a2+4a+3) |
| (a2+a)(a2-5a+6) |
| y |
| x |
| 3 |
| 2 |
| y |
| z |
| 3 |
| 一 |
| 2xy+yz |
| 2yz-xy |