| ( | x | − | 48 5 | ) | ( | 2 | x | − | 132 5 | ) | = | 6336 25 |
| Left side of the equation = | x | ( | 2 | x | − | 132 5 | ) | − | 48 5 | ( | 2 | x | − | 132 5 | ) |
| = | x | × | 2 | x | − | x | × | 132 5 | − | 48 5 | ( | 2 | x | − | 132 5 | ) |
| = | x | × | 2 | x | − | 132 5 | x | − | 48 5 | × | 2 | x | + | 48 5 | × | 132 5 |
| = | x | × | 2 | x | − | 132 5 | x | − | 96 5 | x | + | 6336 25 |
| = | x | × | 2 | x | − | 228 5 | x | + | 6336 25 |
| x | × | 2 | x | − | 228 5 | x | + | 6336 25 | = | 6336 25 |
| x2= | 114 5 |