题干
探索规律
观察下列各式及验证过程：n=2时，有式①： 2×
2+
；n=3时，有式②： 3×
3+
；
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 8 |
| 3 |
| 8 |
式①验证： 2×
2+
| 2 |
| 3 |
| 2 |
| 2 |
| 3 |
| ( |
| 2 |
| 3 |
| 2 |
| ) |
| + |
| 2 |
| 2 |
| 2 |
| 1 |
| ( |
| 2 |
| 2 |
| 1 |
| ) |
| + |
| 2 |
| 2 |
| 2 |
| 1 |
| 2 |
| 3 |
式②验证： 3×
3+
| 3 |
| 8 |
| 3 |
| 3 |
| 8 |
| ( |
| 3 |
| 3 |
| 3 |
| ) |
| + |
| 3 |
| 3 |
| 2 |
| 1 |
| 3 |
| ( |
| 3 |
| 2 |
| 3 |
| ) |
| + |
| 3 |
| 3 |
| 2 |
| 1 |
| 3 |
| 8 |
