( | 232 | − | x | ) | ( | 80 | − | 4 | x | ) | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) | = | 17280 |
方程左边 = | 232 | ( | 80 | − | 4 | x | ) | − | x | ( | 80 | − | 4 | x | ) | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) |
= | 232 | × | 80 | − | 232 | × | 4 | x | − | x | ( | 80 | − | 4 | x | ) | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) |
= | 18560 | − | 928 | x | − | x | ( | 80 | − | 4 | x | ) | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) |
= | 18560 | − | 928 | x | − | x | × | 80 | + | x | × | 4 | x | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) |
= | 18560 | − | 1008 | x | + | x | × | 4 | x | + | ( | 192 | + | x | ) | ( | 4 | x | + | 8 | ) |
= | 18560 | − | 1008 | x | + | x | × | 4 | x | + | 192 | ( | 4 | x | + | 8 | ) | + | x | ( | 4 | x | + | 8 | ) |
= | 18560 | − | 1008 | x | + | x | × | 4 | x | + | 192 | × | 4 | x | + | 192 | × | 8 | + | x |
= | 18560 | − | 1008 | x | + | x | × | 4 | x | + | 768 | x | + | 1536 | + | x | ( | 4 | x | + | 8 | ) |
= | 20096 | − | 240 | x | + | x | × | 4 | x | + | x | ( | 4 | x | + | 8 | ) |
= | 20096 | − | 240 | x | + | x | × | 4 | x | + | x | × | 4 | x | + | x | × | 8 |
= | 20096 | − | 232 | x | + | x | × | 4 | x | + | x | × | 4 | x |
20096 | − | 232 | x | + | x | × | 4 | x | + | x | × | 4 | x | = | 17280 |