x2 |
x-1 |
x |
x-1 |
x2 |
x-1 |
x |
x-1 |
x2-x |
x-1 |
x(x-1) |
x-1 |
1 |
x(x+1) |
1 |
(x+1)(x+2) |
1 |
(x+2)(x+3) |
1 |
(x+2008)(x+2009) |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
2 |
1 |
3 |
1 |
6 |
1 |
3 |
1 |
4 |
1 |
12 |
1 |
4 |
1 |
5 |
1 |
20 |
1 |
5 |
1 |
口 |
1 |
O |
1 |
n |
1 |
☆ |
1 |
△ |
a2 |
a-b |
b2 |
a-b |
n |
2m |
3 |
2m |
q |
p-q |
p |
p-q |
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