| ( | x | − | 1 | ) | ( | x | − | 9 | ) | ( | x | − | 6 | ) | − | 48 | − | 16 | ( | x | − | 9 | ) | − | 9 | ( | x | − | 6 | ) | − | 4 | ( | x | − | 1 | ) | = | 0 |
| Left side of the equation = | x | ( | x | − | 9 | ) | ( | x | − | 6 | ) | − | 1 | ( | x | − | 9 | ) | ( | x | − | 6 | ) | − | 48 | − | 16 | ( | x | − | 9 | ) | − | 9 | ( | x | − | 6 | ) | − | 4 |
| = | x | x | ( | x | − | 6 | ) | − | x | × | 9 | ( | x | − | 6 | ) | − | 1 | ( | x | − | 9 | ) | ( | x | − | 6 | ) | − | 48 | − | 16 | ( | x | − | 9 | ) |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | ( | x | − | 6 | ) | − | 1 | ( | x | − | 9 | ) | ( | x | − | 6 | ) |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | x | × | 9 | × | 6 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | x | × | 54 | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 54 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 54 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 54 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 54 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 60 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 60 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 60 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 69 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 69 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 69 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 53 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 53 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 53 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 44 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 44 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 44 | x | − | 1 |
| = | x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 40 | x | − | 1 |
| x | x | x | − | x | x | × | 6 | − | x | × | 9 | x | + | 40 | x | − | 1 | = | 0 |