( | 10 | − | 2 | x | ) | ( | 6 | − | 2 | x | ) | = | 32 |
Left side of the equation = | 10 | ( | 6 | − | 2 | x | ) | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 10 | × | 6 | − | 10 | × | 2 | x | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 60 | − | 20 | x | − | 2 | x | ( | 6 | − | 2 | x | ) |
= | 60 | − | 20 | x | − | 2 | x | × | 6 | + | 2 | x | × | 2 | x |
= | 60 | − | 20 | x | − | 12 | x | + | 4 | x | x |
= | 60 | − | 32 | x | + | 4 | x | x |
60 | − | 32 | x | + | 4 | x | x | = | 32 |