| ( | 5 2 | + | x | ) | ( | 3 2 | + | x | ) | ÷ | ( | 1 2 | − | x | ) | = | 9 2 |
| 方程两边同时乘以: | ( | 1 2 | − | x | ) |
| ( | 5 2 | + | x | ) | ( | 3 2 | + | x | ) | = | 9 2 | ( | 1 2 | − | x | ) |
5 2 | ( | 3 2 | + | x | ) | + | x | ( | 3 2 | + | x | ) | = | 9 2 | ( | 1 2 | − | x | ) |
5 2 | ( | 3 2 | + | x | ) | + | x | ( | 3 2 | + | x | ) | = | 9 2 | × | 1 2 | − | 9 2 | x |
5 2 | ( | 3 2 | + | x | ) | + | x | ( | 3 2 | + | x | ) | = | 9 4 | − | 9 2 | x |
5 2 | × | 3 2 | + | 5 2 | x | + | x | ( | 3 2 | + | x | ) | = | 9 4 | − | 9 2 | x |
15 4 | + | 5 2 | x | + | x | ( | 3 2 | + | x | ) | = | 9 4 | − | 9 2 | x |
15 4 | + | 5 2 | x | + | x | × | 3 2 | + | x | x | = | 9 4 | − | 9 2 | x |
15 4 | + | 4 | x | + | x | x | = | 9 4 | − | 9 2 | x |