53 10 | = | ( | 5 2 | u | ) | ÷ | ( | u | − | 5 2 | ) |
| 方程两边同时乘以: | ( | u | − | 5 2 | ) |
53 10 | ( | u | − | 5 2 | ) | = | ( | 5 2 | u | ) |
53 10 | u | − | 53 10 | × | 5 2 | = | ( | 5 2 | u | ) |
53 10 | u | − | 53 10 | × | 5 2 | = | 5 2 | u |
53 10 | u | − | 53 4 | = | 5 2 | u |
53 10 | u | − | 5 2 | u | = | 53 4 |
14 5 | u | = | 53 4 |
| u | = | 53 4 | ÷ | 14 5 |
| = | 53 4 | × | 5 14 |
| u | = | 265 56 |
| u | = | 4.732143 |