| ( | x | − | 4 | ) | ( | x | − | 4 | ) | ( | x | − | 9 | ) | + | ( | x | − | 2 | ) | ( | x | − | 2 | ) | ( | x | − | 9 | ) | + | ( | x | − | 4 | ) | ( | x | + | 3 | ) | ( | x | + | 3 | ) | − | ( | x | + | 3 | ) | ( | x | + | 3 | ) | ( | x | − | 4 | ) | = | 0 |
| Left side of the equation = | x | ( | x | − | 4 | ) | ( | x | − | 9 | ) | − | 4 | ( | x | − | 4 | ) | ( | x | − | 9 | ) | + | ( | x | − | 2 | ) | ( | x | − | 2 | ) | ( | x | − | 9 | ) | + | ( | x | − | 4 | ) | ( | x | + | 3 | ) | ( | x | + | 3 | ) |
| = | x | x | ( | x | − | 9 | ) | − | x | × | 4 | ( | x | − | 9 | ) | − | 4 | ( | x | − | 4 | ) | ( | x | − | 9 | ) | + | ( | x | − | 2 | ) | ( | x | − | 2 | ) | ( | x | − | 9 | ) |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | ( | x | − | 9 | ) | − | 4 | ( | x | − | 4 | ) | ( | x | − | 9 | ) |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | x | × | 4 | × | 9 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | x | × | 36 | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 36 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 36 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 36 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 36 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 72 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 72 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 72 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 88 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 106 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 106 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 106 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 106 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 106 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 124 | x | − | 4 |
| = | x | x | x | − | x | x | × | 9 | − | x | × | 4 | x | + | 124 | x | − | 4 |