x+y |
1+xy |
1 |
n2+3n+1 |
1 |
n+1 |
1 |
n+2 |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
x-y |
1-xy |
x-y |
1-xy |
x-y |
1-xy |
x-y |
1-xy |
1 |
n+1 |
1 |
n+2 |
| ||||
1-
|
1 |
n2+3n+1 |
1 |
n2+3n+1 |
1 |
n+1 |
1 |
n+2 |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
n+1 |
1 |
n+2 |
1 |
2 |
1 |
n+2 |
1 |
n+2 |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
n+1 |
1 |
n+2 |
1 |
2 |
1 |
n+2 |
1 |
2 |