9x |
9x+3 |
1 |
2009 |
2 |
2009 |
2008 |
2009 |
9x |
9x+3 |
91-x |
91-x+3 |
9x |
9x+3 |
9 |
9+3•9x |
9x |
9x+3 |
9 |
3(9x+3) |
1 |
2009 |
2 |
2009 |
2008 |
2009 |
2008 |
2009 |
2007 |
2009 |
1 |
2009 |
1 |
2009 |
2008 |
2009 |
2008 |
2009 |
1 |
2009 |
1 |
4 |
A.
| B.-
| C.
| D.-
|
4 |
3 |
b |
|x| |
1 |
n |
1 |
n2 |
1 |
n3 |
1 |
3n |
1 |
3n-1 |
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