69 5 | × | 250 | x | ( | 460 | − | x | − | 2 | ) | = | 0 |
| Left side of the equation = | 3450 | x | ( | 460 | − | x | − | 2 | ) |
| 3450 | x | ( | 460 | − | x | − | 2 | ) | = | 0 |
| Left side of the equation = | 3450 | x | × | 460 | − | 3450 | x | x | − | 3450 | x | × | 2 |
| = | 1587000 | x | − | 3450 | x | x | − | 6900 | x |
| = | 1580100 | x | − | 3450 | x | x |
| 1580100 | x | − | 3450 | x | x | = | 0 |