| ( | 2 | x | + | 3 | ) | ( | 3 | x | − | 2 | ) | − | x | ( | 6 | x | − | 1 | ) | = | 0 |
| Left side of the equation = | 2 | x | ( | 3 | x | − | 2 | ) | + | 3 | ( | 3 | x | − | 2 | ) | − | x | ( | 6 | x | − | 1 | ) |
| = | 2 | x | × | 3 | x | − | 2 | x | × | 2 | + | 3 | ( | 3 | x | − | 2 | ) | − | x | ( | 6 | x | − | 1 | ) |
| = | 6 | x | x | − | 4 | x | + | 3 | ( | 3 | x | − | 2 | ) | − | x | ( | 6 | x | − | 1 | ) |
| = | 6 | x | x | − | 4 | x | + | 3 | × | 3 | x | − | 3 | × | 2 | − | x | ( | 6 | x | − | 1 | ) |
| = | 6 | x | x | − | 4 | x | + | 9 | x | − | 6 | − | x | ( | 6 | x | − | 1 | ) |
| = | 6 | x | x | + | 5 | x | − | 6 | − | x | ( | 6 | x | − | 1 | ) |
| = | 6 | x | x | + | 5 | x | − | 6 | − | x | × | 6 | x | + | x | × | 1 |
| = | 6 | x | x | + | 6 | x | − | 6 | − | x | × | 6 | x |
| 6 | x | x | + | 6 | x | − | 6 | − | x | × | 6 | x | = | 0 |