| 25 | × | 1 4 | ÷ | ( | 25 | − | x | ) | + | 25 2 | × | 1 4 | ÷ | ( | 25 2 | − | x | ) | + | 5 | × | 1 4 | ÷ | ( | 5 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 25 | − | x | ) |
| 25 | × | 1 4 | + | 25 2 | × | 1 4 | ÷ | ( | 25 2 | − | x | ) | × | ( | 25 | − | x | ) | + | 5 | × | 1 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | = | 0 |
| 25 | × | 1 4 | + | 25 2 | × | 1 4 | ÷ | ( | 25 2 | − | x | ) | × | 25 | − | 25 2 | × | 1 4 | ÷ | ( | 25 2 | − | x | ) | × | x | + | 5 | × | 1 4 | = | 0 |
25 4 | + | 625 8 | ÷ | ( | 25 2 | − | x | ) | − | 25 8 | ÷ | ( | 25 2 | − | x | ) | × | x | + | 5 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | × | ( | 25 | − | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 25 2 | − | x | ) |
25 4 | ( | 25 2 | − | x | ) | + | 625 8 | − | 25 8 | x | + | 5 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | × | ( | 25 | − | x | ) | = | 0 |
25 4 | × | 25 2 | − | 25 4 | x | + | 625 8 | − | 25 8 | x | + | 5 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | = | 0 |
625 8 | − | 25 4 | x | + | 625 8 | − | 25 8 | x | + | 5 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | = | 0 |
625 4 | − | 75 8 | x | + | 5 4 | ÷ | ( | 5 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 5 | − | x | ) |
625 4 | ( | 5 | − | x | ) | − | 75 8 | x | ( | 5 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | × | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | = | 0 |
625 4 | × | 5 | − | 625 4 | x | − | 75 8 | x | ( | 5 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | = | 0 |
3125 4 | − | 625 4 | x | − | 75 8 | x | ( | 5 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | + | 1 4 | ÷ | ( | 1 4 | − | x | ) | × | ( | 25 | − | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 1 4 | − | x | ) |
3125 4 | ( | 1 4 | − | x | ) | − | 625 4 | x | ( | 1 4 | − | x | ) | − | 75 8 | x | ( | 5 | − | x | ) | ( | 1 4 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | ( | 25 2 | − | x | ) | = | 0 |
3125 4 | × | 1 4 | − | 3125 4 | x | − | 625 4 | x | ( | 1 4 | − | x | ) | − | 75 8 | x | ( | 5 | − | x | ) | ( | 1 4 | − | x | ) | + | 5 4 | = | 0 |
3125 16 | − | 3125 4 | x | − | 625 4 | x | ( | 1 4 | − | x | ) | − | 75 8 | x | ( | 5 | − | x | ) | ( | 1 4 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | = | 0 |
3125 16 | − | 3125 4 | x | − | 625 4 | x | × | 1 4 | + | 625 4 | x | x | − | 75 8 | x | ( | 5 | − | x | ) | = | 0 |
3125 16 | − | 3125 4 | x | − | 625 16 | x | + | 625 4 | x | x | − | 75 8 | x | ( | 5 | − | x | ) | ( | 1 4 | − | x | ) | = | 0 |
3125 16 | − | 13125 16 | x | + | 625 4 | x | x | − | 75 8 | x | ( | 5 | − | x | ) | ( | 1 4 | − | x | ) | + | 5 4 | ( | 25 | − | x | ) | = | 0 |
3125 16 | − | 13125 16 | x | + | 625 4 | x | x | − | 75 8 | x | × | 5 | ( | 1 4 | − | x | ) | + | 75 8 | x | = | 0 |
3125 16 | − | 13125 16 | x | + | 625 4 | x | x | − | 375 8 | x | ( | 1 4 | − | x | ) | + | 75 8 | x | x | = | 0 |
3125 16 | − | 13125 16 | x | + | 625 4 | x | x | − | 375 8 | x | × | 1 4 | + | 375 8 | x | x | = | 0 |
3125 16 | − | 13125 16 | x | + | 625 4 | x | x | − | 375 32 | x | + | 375 8 | x | x | + | 75 8 | = | 0 |
3125 16 | − | 26625 32 | x | + | 625 4 | x | x | + | 375 8 | x | x | + | 75 8 | x | x | = | 0 |
3125 16 | − | 26625 32 | x | + | 625 4 | x | x | + | 375 8 | x | x | + | 75 8 | x | x | = | 0 |