381875949 2 | = | 6417600 | x | ( | 280 | x | − | 40 | ) | − | ( | ( | x | − | 4 5 | ) | ÷ | 141 500 | ) | × | 134784000 |
| 方程右边 = | 6417600 | x | × | 280 | x | − | 6417600 | x | × | 40 | − | ( | ( | x | − | 4 5 | ) | ÷ | 141 500 | ) | × | 134784000 |
| = | 1796928000 | x | x | − | 256704000 | x | − | ( | ( | x | − | 4 5 | ) | ÷ | 141 500 | ) | × | 134784000 |
| = | 1796928000 | x | x | − | 256704000 | x | − | ( | x | − | 4 5 | ) | ÷ | 141 500 | × | 134784000 |