| ( | 1 | + | i | ) | ( | 49 50 | + | i | ) | = | 297 250 |
| 方程左边 = | 1 | ( | 49 50 | + | i | ) | + | i | ( | 49 50 | + | i | ) |
| = | 1 | × | 49 50 | + | 1 | i | + | i | ( | 49 50 | + | i | ) |
| = | 49 50 | + | 1 | i | + | i | ( | 49 50 | + | i | ) |
| = | 49 50 | + | 1 | i | + | i | × | 49 50 | + | i | i |
| = | 49 50 | + | 99 50 | i | + | i | i |
49 50 | + | 99 50 | i | + | i | i | = | 297 250 |
| i1= | - | 52 25 |
| i2= | 1 10 |