| 335 | ( | 1964 | × | 3285 | − | 1964 | × | 233 2 | ) | = | 37 2 | × | 1000 | x | ( | 657 2 | − | 995 2 | + | 1 2 | x | ) |
| 方程左边 = | 335 | × | 1964 | × | 3285 | − | 335 | × | 1964 | × | 233 2 |
| = | 2161332900 | − | 76650010 |
| = | 2084682890 |
| 2084682890 | = | 37 2 | × | 1000 | x | ( | 657 2 | − | 995 2 | + | 1 2 | x | ) |
| 方程右边 = | 18500 | x | ( | 657 2 | − | 995 2 | + | 1 2 | x | ) |
| 2084682890 | = | 18500 | x | ( | 657 2 | − | 995 2 | + | 1 2 | x | ) |
| 方程右边 = | 18500 | x | × | 657 2 | − | 18500 | x | × | 995 2 | + | 18500 | x | × | 1 2 | x |
| = | 6077250 | x | − | 9203750 | x | + | 9250 | x | x |
| = | - | 3126500 | x | + | 9250 | x | x |
| 2084682890 | = | - | 3126500 | x | + | 9250 | x | x |