| ( | 1 | − | 2 | x | ÷ | 2 | ) | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) | = | 0 |
| 方程左边 = | 1 | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) | − | 2 | x | ÷ | 2 | × | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) |
| = | 1 | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) | − | 1 | x | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) |
| = | 1 | x | ÷ | 3 | − | 1 | × | 2 | x | + | 1 | × | 3 | − | 1 | x | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) |
| = | 1 3 | x | − | 2 | x | + | 3 | − | 1 | x | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) |
| = | - | 5 3 | x | + | 3 | − | 1 | x | ( | x | ÷ | 3 | − | 2 | x | + | 3 | ) |
| = | - | 5 3 | x | + | 3 | − | 1 | x | x | ÷ | 3 | + | 1 | x | × | 2 | x | − | 1 |
| = | - | 5 3 | x | + | 3 | − | 1 3 | x | x | + | 2 | x | x | − | 3 | x |
| = | - | 14 3 | x | + | 3 | − | 1 3 | x | x | + | 2 | x | x |
| - | 14 3 | x | + | 3 | − | 1 3 | x | x | + | 2 | x | x | = | 0 |
| x2= | 9 5 |