| ( | x | − | 149 10 | ) | ( | x | − | 149 10 | ) | − | 20164 25 | = | ( | 4 | x | − | 298 5 | ) | × | 45 2 |
| Left side of the equation = | x | ( | x | − | 149 10 | ) | − | 149 10 | ( | x | − | 149 10 | ) | − | 20164 25 |
| = | x | x | − | x | × | 149 10 | − | 149 10 | ( | x | − | 149 10 | ) | − | 20164 25 |
| = | x | x | − | 149 10 | x | − | 149 10 | x | + | 149 10 | × | 149 10 | − | 20164 25 |
| = | x | x | − | 149 10 | x | − | 149 10 | x | + | 22201 100 | − | 20164 25 |
| = | x | x | − | 149 5 | x | − | 11691 20 |
| x | x | − | 149 5 | x | − | 11691 20 | = | ( | 4 | x | − | 298 5 | ) | × | 45 2 |
| Right side of the equation = | 4 | x | × | 45 2 | − | 298 5 | × | 45 2 |
| = | 90 | x | − | 1341 |
| x | x | − | 149 5 | x | − | 11691 20 | = | 90 | x | − | 1341 |