| ( | x | − | 1 | ) | ( | x | − | 2 | ) | ( | x | − | 4 | ) | ( | x | − | 8 | ) | = | ( | 4 | x | x | ) |
| Left side of the equation = | x | ( | x | − | 2 | ) | ( | x | − | 4 | ) | ( | x | − | 8 | ) | − | 1 | ( | x | − | 2 | ) | ( | x | − | 4 | ) | ( | x | − | 8 | ) |
| = | x | x | ( | x | − | 4 | ) | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 4 | ) | ( | x | − | 8 | ) | − | 1 | ( | x | − | 2 | ) | ( | x | − | 4 | ) | ( | x | − | 8 | ) |
| = | x | x | x | ( | x | − | 8 | ) | − | x | x | × | 4 | ( | x | − | 8 | ) | − | x | × | 2 | ( | x | − | 4 | ) | ( | x | − | 8 | ) |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | ( | x | − | 8 | ) |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |
| = | x | x | x | x | − | x | x | x | × | 8 | − | x | x | × | 4 | x |