| 234 | × | 234 | ÷ | 248 | ÷ | 248 | × | ( | 1 | − | x | x | ) | = | 15707963 5000000 | x | × | 15707963 5000000 | x |
| 方程左边 = | 13689 15376 | ( | 1 | − | x | x | ) |
13689 15376 | ( | 1 | − | x | x | ) | = | 15707963 5000000 | x | × | 15707963 5000000 | x |
| 方程左边 = | 13689 15376 | × | 1 | − | 13689 15376 | x | x |
| = | 13689 15376 | − | 13689 15376 | x | x |
13689 15376 | − | 13689 15376 | x | x | = | 15707963 5000000 | x | × | 15707963 5000000 | x |