| 2 | x | ( | 22 | − | 2 | x | ) | + | 2 | x | ( | 29 | − | 2 | x | ) | = | 319 2 |
| Left side of the equation = | 2 | x | × | 22 | − | 2 | x | × | 2 | x | + | 2 | x | ( | 29 | − | 2 | x | ) |
| = | 44 | x | − | 4 | x | x | + | 2 | x | ( | 29 | − | 2 | x | ) |
| = | 44 | x | − | 4 | x | x | + | 2 | x | × | 29 | − | 2 | x | × | 2 | x |
| = | 44 | x | − | 4 | x | x | + | 58 | x | − | 4 | x | x |
| = | 102 | x | − | 4 | x | x | − | 4 | x | x |
| 102 | x | − | 4 | x | x | − | 4 | x | x | = | 319 2 |