| X | × | 4 | − | 40 | X | × | 3 | + | 336 | X | × | 2 | − | 1024 | X | + | 1024 | = | 0 |
| 方程左边 = | X | × | 4 | − | 120 | X | + | 672 | X | − | 1024 | X | + | 1024 |
| = | - | 468 | X | + | 1024 |
| - | 468 | X | + | 1024 | = | 0 |
| - | 468 | X | = | 0 | − | 1024 |
| - | 468 | X | = | - | 1024 |
| 1024 | = | 468 | X |
| 468 | X | = | 1024 |
| X | = | 1024 | ÷ | 468 |
| = | 1024 | × | 1 468 |
| = | 256 | × | 1 117 |
| X | = | 256 117 |
| X | = | 2.188034 |