x | x | = | 1537 100 | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
方程右边 = | 1537 100 | × | 1 | ( | 1 | − | 2 | x | ) | − | 1537 100 | × | 2 | x | ( | 1 | − | 2 | x | ) |
= | 1537 100 | ( | 1 | − | 2 | x | ) | − | 1537 50 | x | ( | 1 | − | 2 | x | ) |
= | 1537 100 | × | 1 | − | 1537 100 | × | 2 | x | − | 1537 50 | x | ( | 1 | − | 2 | x | ) |
= | 1537 100 | − | 1537 50 | x | − | 1537 50 | x | ( | 1 | − | 2 | x | ) |
= | 1537 100 | − | 1537 50 | x | − | 1537 50 | x | × | 1 | + | 1537 50 | x | × | 2 | x |
= | 1537 100 | − | 1537 50 | x | − | 1537 50 | x | + | 1537 25 | x | x |
= | 1537 100 | − | 1537 25 | x | + | 1537 25 | x | x |
x | x | = | 1537 100 | − | 1537 25 | x | + | 1537 25 | x | x |