| 64 | ( | X | + | 1 | ) | ( | X | + | 1 | ) | ( | X | + | 1 | ) | = | 27 |
| 方程左边 = | 64 | X | ( | X | + | 1 | ) | ( | X | + | 1 | ) | + | 64 | × | 1 | ( | X | + | 1 | ) | ( | X | + | 1 | ) |
| = | 64 | X | ( | X | + | 1 | ) | ( | X | + | 1 | ) | + | 64 | ( | X | + | 1 | ) | ( | X | + | 1 | ) |
| = | 64 | X | X | ( | X | + | 1 | ) | + | 64 | X | × | 1 | ( | X | + | 1 | ) | + | 64 | ( | X | + | 1 | ) | ( | X | + | 1 | ) |
| = | 64 | X | X | ( | X | + | 1 | ) | + | 64 | X | ( | X | + | 1 | ) | + | 64 | ( | X | + | 1 | ) | ( | X | + | 1 | ) |
| = | 64 | X | X | X | + | 64 | X | X | × | 1 | + | 64 | X | ( | X | + | 1 | ) | + | 64 |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | ( | X | + | 1 | ) | + | 64 | ( | X | + | 1 | ) |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 64 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 128 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 128 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 128 | X |
| = | 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 192 | X |
| 64 | X | X | X | + | 64 | X | X | + | 64 | X | X | + | 192 | X | = | 27 |
| X= | - | 1 4 |