xy |
x2-y2 |
xy |
x2-y2 |
-2x2 |
x2-4x2 |
2 |
3 |
2 |
3 |
y2 |
6x |
1 |
3x2 |
a2-4 |
8a2b |
12ab |
3a-6 |
1 |
a-1 |
a2 |
1-a2 |
2 |
x2-4 |
1 |
2x-4 |
a2 |
a+2 |
4 |
a+2 |
2x-3 |
x |
x2-9 |
x |
8 |
|
3 | ||
|
5 |
5 |
5 |
1 | ||
|
a+1 |
a2-2a |
a2-1 |
a-2 |
3x |
x-2 |
x |
x+2 |
2x |
x2-4 |
a2-4 |
a+2 |
3x |
x+2 |
x |
x-2 |
x |
x2-4 |
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