| 25 | = | t | t | ( | 1 | + | t | t | ) | ( | 1 | + | t | t | ÷ | 16 | ) |
| Right side of the equation = | t | t | × | 1 | ( | 1 | + | t | t | ÷ | 16 | ) | + | t | t | t | t | ( | 1 | + | t | t | ÷ | 16 | ) |
| = | t | t | × | 1 | × | 1 | + | t | t | × | 1 | t | t | ÷ | 16 | + | t | t |
| = | t | t | × | 1 | + | t | t | × | 1 16 | t | t | + | t | t | t | t |
| = | t | t | × | 1 | + | t | t | × | 1 16 | t | t | + | t | t | t | t |
| 25 | = | t | t | × | 1 | + | t | t | × | 1 16 | t | t | + | t | t | t | t |