( | 6 | − | 2 | x | ) | ( | 6 | − | 2 | x | ) | = | 1 | ÷ | 17000000 |
方程左边 = | 6 | ( | 6 | − | 2 | x | ) | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 6 | × | 6 | − | 6 | × | 2 | x | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 36 | − | 12 | x | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 36 | − | 12 | x | − | 2 | x | × | 6 | + | 2 | x | × | 2 | x |
= | 36 | − | 12 | x | − | 12 | x | + | 4 | x | x |
= | 36 | − | 24 | x | + | 4 | x | x |
36 | − | 24 | x | + | 4 | x | x | = | 1 | ÷ | 17000000 |
方程右边 = | 1 17000000 |
36 | − | 24 | x | + | 4 | x | x | = | 1 17000000 |