( | 121 100 | + | x | − | 11 10 | ) | x | ( | 195 | − | 10 | x | ) | − | 5 | x | = | 2305 |
方程左边 = | 121 100 | x | ( | 195 | − | 10 | x | ) | + | x | x | ( | 195 | − | 10 | x | ) | − | 11 10 | x | ( | 195 | − | 10 | x | ) | − | 5 | x |
= | 121 100 | x | × | 195 | − | 121 100 | x | × | 10 | x | + | x | x | ( | 195 | − | 10 | x | ) | − | 11 10 | x |
= | 4719 20 | x | − | 121 10 | x | x | + | x | x | ( | 195 | − | 10 | x | ) | − | 11 10 | x | ( | 195 | − | 10 | x | ) | − | 5 |
= | 4619 20 | x | − | 121 10 | x | x | + | x | x | ( | 195 | − | 10 | x | ) | − | 11 10 | x | ( | 195 | − | 10 | x | ) |
= | 4619 20 | x | − | 121 10 | x | x | + | x | x | × | 195 | − | x | x | × | 10 | x |
= | 4619 20 | x | − | 121 10 | x | x | + | x | x | × | 195 | − | x | x | × | 10 | x |
= | 4619 20 | x | − | 121 10 | x | x | + | x | x | × | 195 | − | x | x | × | 10 | x |
= | 329 20 | x | − | 121 10 | x | x | + | x | x | × | 195 | − | x | x | × | 10 | x |
329 20 | x | − | 121 10 | x | x | + | x | x | × | 195 | − | x | x | × | 10 | x | = | 2305 |