a-b |
2ab |
2-1 |
2×2×1 |
3-2 |
2×3×2 |
2010-2009 |
2×2010×2009 |
2011-2010 |
2×2011×2010 |
1 |
2×1 |
1 |
2×2 |
1 |
2×2 |
1 |
2×3 |
1 |
2×2009 |
1 |
2×2010 |
1 |
2×2010 |
1 |
2×2011 |
1 |
2 |
1 |
4022 |
2010 |
4022 |
1005 |
2011 |
1005 |
2011 |
2a |
a-1 |
a |
a-1 |
4 |
a-1 |
x |
x+2 |
x2-2x |
x2-1 |
2x-1 |
x+1 |
2x-2 |
x2-1 |
1 |
x+1 |
x-1 |
x+2 |
x2-1 |
x3+4x+4x |
2x+1 |
x+1 |
15 |
x-1 |
x-4 |
x-1 |
3 |
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