| ( | 4 5 | − | 1 50 | x | × | 2 | ) | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x | × | 14 | + | ( | 9 10 | − | 1 50 | ) | x | × | 2 | x | = | 0 |
| 方程左边 = | ( | 4 5 | − | 1 50 | x | × | 2 | ) | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x | × | 14 | + | ( | 9 10 | − | 1 50 | ) | x | × | 16 | x |
| ( | 4 5 | − | 1 50 | x | × | 2 | ) | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x | × | 14 | + | ( | 9 10 | − | 1 50 | ) | x | × | 16 | x | = | 0 |
| 方程左边 = | 4 5 | x | ( | 2 | − | 1 50 | ) | − | 1 50 | x | × | 2 | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x |
| = | 4 5 | x | ( | 2 | − | 1 50 | ) | − | 1 25 | x | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x | × | 14 |
| = | 4 5 | x | × | 2 | − | 4 5 | x | × | 1 50 | − | 1 25 | x | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x |
| = | 8 5 | x | − | 2 125 | x | − | 1 25 | x | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x |
| = | 198 125 | x | − | 1 25 | x | x | ( | 2 | − | 1 50 | ) | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x | × | 14 | + | ( | 9 10 | − | 1 50 | ) |
| = | 198 125 | x | − | 1 25 | x | x | × | 2 | + | 1 25 | x | x | × | 1 50 | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | ( | 10 | − | 1 50 | x | × | 2 | ) | x | ( | 21 10 | − | 1 50 | ) | x |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 10 | x | ( | 21 10 | − | 1 50 | ) | x |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 140 | x | ( | 21 10 | − | 1 50 | ) | x |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 140 | x | × | 21 10 | x |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 198 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 573 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |
| = | 573 125 | x | − | 2 25 | x | x | + | 1 1250 | x | x | + | 294 | x | x | − | 14 5 |