a+2 |
a-2 |
4 |
a2-4a+4 |
a |
a-2 |
a2-4 |
(a-2)2 |
4 |
(a-2)2 |
a-2 |
a |
a |
a-2 |
a |
a-2 |
x2+x |
x-1 |
x2-1 |
x2-2x+1 |
1 |
x |
x2048+x-2048-2 |
x2013+x-2013 |
a2-b2 |
a2-ab |
2ab+b2 |
a |
2ab-b2 |
a |
a2+ab |
a2-b2 |
3 |
m-3 |
3m2-6m |
5 |
m-2 |
x |
x-1 |
x |
x2-1 |
x2-x |
x2-2x+1 |
x2-4 |
x2-4x+4 |
x+2 |
x-2 |
x |
x-2 |
1 |
2 |
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