| ( | 1500 | − | 300 | ) | ÷ | x | − | ( | 1500 | − | 300 | ) | ÷ | 3 2 | × | x | = | 0 |
| Multiply both sides of the equation by: | x |
| ( | 1500 | − | 300 | ) | − | ( | 1500 | − | 300 | ) | ÷ | 3 2 | × | x | x | = | 0 |
| 1500 | − | 300 | − | ( | 1500 | − | 300 | ) | ÷ | 3 2 | × | x | x | = | 0 |
| 1200 | − | ( | 1500 | − | 300 | ) | × | 2 3 | x | x | = | 0 |
| 1200 | − | 1500 | × | 2 3 | x | x | + | 300 | × | 2 3 | x | x | = | 0 |
| 1200 | − | 1000 | x | x | + | 200 | x | x | = | 0 |
| x1= | - | √3 √2 |
| x2= | √3 √2 |