| ( | 1 | + | 3 | x | ) | ( | 2 | + | 2 | x | ) | ( | 3 | + | x | ) | x | = | 32 |
| 方程左边 = | 1 | ( | 2 | + | 2 | x | ) | ( | 3 | + | x | ) | x | + | 3 | x | ( | 2 | + | 2 | x | ) | ( | 3 | + | x | ) | x |
| = | 1 | × | 2 | ( | 3 | + | x | ) | x | + | 1 | × | 2 | x | ( | 3 | + | x | ) | x | + | 3 | x | ( | 2 | + | 2 | x | ) |
| = | 2 | ( | 3 | + | x | ) | x | + | 2 | x | ( | 3 | + | x | ) | x | + | 3 | x | ( | 2 | + | 2 | x | ) | ( | 3 | + | x | ) | x |
| = | 2 | × | 3 | x | + | 2 | x | x | + | 2 | x | ( | 3 | + | x | ) | x | + | 3 | x |
| = | 6 | x | + | 2 | x | x | + | 2 | x | ( | 3 | + | x | ) | x | + | 3 | x | ( | 2 | + | 2 | x | ) |
| = | 6 | x | + | 2 | x | x | + | 2 | x | × | 3 | x | + | 2 | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| = | 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x |
| 6 | x | + | 2 | x | x | + | 6 | x | x | + | 2 | x | x | x | = | 32 |