( | x | + | 3 | ) | ( | x | − | 5 | ) | = | ( | x | − | 5 | ) |
Left side of the equation = | x | ( | x | − | 5 | ) | + | 3 | ( | x | − | 5 | ) |
= | x | x | − | x | × | 5 | + | 3 | ( | x | − | 5 | ) |
= | x | x | − | 5 | x | + | 3 | x | − | 3 | × | 5 |
= | x | x | − | 5 | x | + | 3 | x | − | 15 |
= | x | x | − | 2 | x | − | 15 |
x | x | − | 2 | x | − | 15 | = | ( | x | − | 5 | ) |
Right side of the equation = | x | − | 5 |
x | x | − | 2 | x | − | 15 | = | x | − | 5 |