| 0 | = | 4 | ÷ | 25 | × | ( | x | − | 7 | ÷ | 5 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 | ÷ | 25 | × | ( | x | − | 1 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 4 | ÷ | 25 |
| 方程右边 = | 4 25 | ( | x | − | 7 | ÷ | 5 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 25 | ( | x | − | 1 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 4 25 | ( | x | − | 7 | ÷ | 5 | ) | ( | x | − | 2 | ) | ( | x | − | 1 | ) |
| 0 | = | 4 25 | ( | x | − | 7 | ÷ | 5 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 25 | ( | x | − | 1 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 4 25 | ( | x | − | 7 | ÷ | 5 | ) | ( | x | − | 2 | ) | ( | x | − | 1 | ) |
| 方程右边 = | 4 25 | x | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 4 25 | × | 7 | ÷ | 5 | × | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 25 | ( | x | − | 1 | ) | ( | x | − | 9 | ÷ | 5 | ) |
| = | 4 25 | x | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 28 125 | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 25 | ( | x | − | 1 | ) | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 4 25 |
| = | 4 25 | x | x | ( | x | − | 2 | ) | − | 4 25 | x | × | 9 | ÷ | 5 | × | ( | x | − | 2 | ) | − | 28 125 | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) |
| = | 4 25 | x | x | ( | x | − | 2 | ) | − | 36 125 | x | ( | x | − | 2 | ) | − | 28 125 | ( | x | − | 9 | ÷ | 5 | ) | ( | x | − | 2 | ) | − | 3 25 | ( | x | − | 1 | ) |
| = | 4 25 | x | x | x | − | 4 25 | x | x | × | 2 | − | 36 125 | x | ( | x | − | 2 | ) | − | 28 125 |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | ( | x | − | 2 | ) | − | 28 125 | ( | x | − | 9 | ÷ | 5 | ) |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 36 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 72 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 72 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 72 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 72 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 72 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 128 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 128 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 128 125 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |
| = | 4 25 | x | x | x | − | 8 25 | x | x | − | 36 125 | x | x | + | 892 625 | x |