( | X | − | 22 | ) | ( | - | 80 | X | + | 2560 | ) | = | 0 |
Left side of the equation = | X | ( | - | 80 | X | + | 2560 | ) | − | 22 | ( | - | 80 | X | + | 2560 | ) |
= | - | X | × | 80 | X | + | X | × | 2560 | − | 22 | ( | - | 80 | X | + | 2560 | ) |
= | - | X | × | 80 | X | + | 2560 | X | + | 22 | × | 80 | X | − | 22 | × | 2560 |
= | - | X | × | 80 | X | + | 2560 | X | + | 1760 | X | − | 56320 |
= | - | X | × | 80 | X | + | 4320 | X | − | 56320 |
- | X | × | 80 | X | + | 4320 | X | − | 56320 | = | 0 |