7 | x | − | 11689 25 | − | ( | 7 | x | x | × | 13 100 | − | 112 | − | 14 | ) | x | × | 10 100 | ( | 7 | x | − | 46756 | ) | x | × | 25 100 | = | 0 |
方程左边 = | 7 | x | − | 11689 25 | − | ( | 7 | x | x | × | 13 100 | − | 112 | − | 14 | ) | x | × | 1 40 | ( | 7 | x | − | 46756 | ) | x |
7 | x | − | 11689 25 | − | ( | 7 | x | x | × | 13 100 | − | 112 | − | 14 | ) | x | × | 1 40 | ( | 7 | x | − | 46756 | ) | x | = | 0 |
方程左边 = | 7 | x | − | 11689 25 | − | 7 | x | x | × | 13 100 | x | × | 1 40 | ( | 7 | x | − | 46756 | ) | x | + | 112 |
= | 7 | x | − | 11689 25 | − | 91 4000 | x | x | x | ( | 7 | x | − | 46756 | ) | x | + | 14 5 | x | ( | 7 | x | − | 46756 | ) |
= | 7 | x | − | 11689 25 | − | 91 4000 | x | x | x | × | 7 | x | x | + | 91 4000 | x |
= | 7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x |
= | 7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x |
= | 7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x |
= | 7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x |
= | 7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x |
7 | x | − | 11689 25 | − | 637 4000 | x | x | x | x | x | + | 1063699 1000 | x | x | = | 0 |