259 250 | ( | 259 250 | ( | 40 | − | 12 | x | ) | − | 12 | x | ) | − | 12 | x | = | 0 |
| 方程左边 = | 259 250 | × | 259 250 | ( | 40 | − | 12 | x | ) | − | 259 250 | × | 12 | x | − | 12 | x |
| = | 67081 62500 | ( | 40 | − | 12 | x | ) | − | 1554 125 | x | − | 12 | x |
| = | 67081 62500 | ( | 40 | − | 12 | x | ) | − | 3054 125 | x |
| = | 67081 62500 | × | 40 | − | 67081 62500 | × | 12 | x | − | 3054 125 | x |
| = | 134162 3125 | − | 201243 15625 | x | − | 3054 125 | x |
| = | 134162 3125 | − | 582993 15625 | x |
134162 3125 | − | 582993 15625 | x | = | 0 |
| - | 582993 15625 | x | = | 0 | − | 134162 3125 |
| - | 582993 15625 | x | = | - | 134162 3125 |
134162 3125 | = | 582993 15625 | x |
582993 15625 | x | = | 134162 3125 |
| x | = | 134162 3125 | ÷ | 582993 15625 |
| = | 134162 3125 | × | 15625 582993 |
| = | 134162 | × | 5 582993 |
| x | = | 670810 582993 |
| x | = | 1.150631 |