| x | ( | x | + | 107 25 | ) | ( | x | + | 111 50 | ) | + | 10 | = | 0 |
| 方程左边 = | x | x | ( | x | + | 111 50 | ) | + | x | × | 107 25 | ( | x | + | 111 50 | ) | + | 10 |
| = | x | x | x | + | x | x | × | 111 50 | + | x | × | 107 25 | ( | x | + | 111 50 | ) | + | 10 |
| = | x | x | x | + | x | x | × | 111 50 | + | x | × | 107 25 | x | + | x | × | 107 25 | × | 111 50 |
| = | x | x | x | + | x | x | × | 111 50 | + | x | × | 107 25 | x | + | x | × | 11877 1250 | + | 10 |
| x | x | x | + | x | x | × | 111 50 | + | x | × | 107 25 | x | + | 11877 1250 | x | + | 10 | = | 0 |