33 10 | − | 593 20 | ( | 1 | − | x | ) | ( | 1 | − | x | ) | = | 1 | − | x |
| Left side of the equation = | 33 10 | − | 593 20 | × | 1 | ( | 1 | − | x | ) | + | 593 20 | x | ( | 1 | − | x | ) |
| = | 33 10 | − | 593 20 | ( | 1 | − | x | ) | + | 593 20 | x | ( | 1 | − | x | ) |
| = | 33 10 | − | 593 20 | × | 1 | + | 593 20 | x | + | 593 20 | x | ( | 1 | − | x | ) |
| = | 33 10 | − | 593 20 | + | 593 20 | x | + | 593 20 | x | ( | 1 | − | x | ) |
| = | - | 527 20 | + | 593 20 | x | + | 593 20 | x | ( | 1 | − | x | ) |
| = | - | 527 20 | + | 593 20 | x | + | 593 20 | x | × | 1 | − | 593 20 | x | x |
| = | - | 527 20 | + | 593 20 | x | + | 593 20 | x | − | 593 20 | x | x |
| = | - | 527 20 | + | 593 10 | x | − | 593 20 | x | x |
| - | 527 20 | + | 593 10 | x | − | 593 20 | x | x | = | 1 | − | x |