| 12 | x | ( | x | ÷ | 2 | ) | = | 201 25 | × | 5 2 | ( | 65 2 | − | x | ) |
| Left side of the equation = | 12 | x | x | ÷ | 2 |
| = | 6 | x | x |
| 6 | x | x | = | 201 25 | × | 5 2 | ( | 65 2 | − | x | ) |
| Right side of the equation = | 201 10 | ( | 65 2 | − | x | ) |
| 6 | x | x | = | 201 10 | ( | 65 2 | − | x | ) |
| Right side of the equation = | 201 10 | × | 65 2 | − | 201 10 | x |
| = | 2613 4 | − | 201 10 | x |
| 6 | x | x | = | 2613 4 | − | 201 10 | x |