| ( | 2 | t | − | 26 | ) | ( | 2 | t | − | 26 | ) | + | 144 | = | ( | 16 | − | t | ) | ( | 16 | − | t | ) |
| 方程左边 = | 2 | t | ( | 2 | t | − | 26 | ) | − | 26 | ( | 2 | t | − | 26 | ) | + | 144 |
| = | 2 | t | × | 2 | t | − | 2 | t | × | 26 | − | 26 | ( | 2 | t | − | 26 | ) | + | 144 |
| = | 4 | t | t | − | 52 | t | − | 26 | ( | 2 | t | − | 26 | ) | + | 144 |
| = | 4 | t | t | − | 52 | t | − | 26 | × | 2 | t | + | 26 | × | 26 | + | 144 |
| = | 4 | t | t | − | 52 | t | − | 52 | t | + | 676 | + | 144 |
| = | 4 | t | t | − | 104 | t | + | 820 |
| 4 | t | t | − | 104 | t | + | 820 | = | ( | 16 | − | t | ) | ( | 16 | − | t | ) |
| 方程右边 = | 16 | ( | 16 | − | t | ) | − | t | ( | 16 | − | t | ) |
| = | 16 | × | 16 | − | 16 | t | − | t | ( | 16 | − | t | ) |
| = | 256 | − | 16 | t | − | t | ( | 16 | − | t | ) |
| = | 256 | − | 16 | t | − | t | × | 16 | + | t | t |
| = | 256 | − | 32 | t | + | t | t |
| 4 | t | t | − | 104 | t | + | 820 | = | 256 | − | 32 | t | + | t | t |