| 2 | x | x | + | ( | 8 | + | x | ) | ( | 8 | + | x | ) | = | 5 | ÷ | 3 | × | x |
| 方程左边 = | 2 | x | x | + | 8 | ( | 8 | + | x | ) | + | x | ( | 8 | + | x | ) |
| = | 2 | x | x | + | 8 | × | 8 | + | 8 | x | + | x | ( | 8 | + | x | ) |
| = | 2 | x | x | + | 64 | + | 8 | x | + | x | ( | 8 | + | x | ) |
| = | 2 | x | x | + | 64 | + | 8 | x | + | x | × | 8 | + | x | x |
| = | 2 | x | x | + | 64 | + | 16 | x | + | x | x |
| 2 | x | x | + | 64 | + | 16 | x | + | x | x | = | 5 | ÷ | 3 | × | x |
| 方程右边 = | 5 3 | x |
| 2 | x | x | + | 64 | + | 16 | x | + | x | x | = | 5 3 | x |