( | x | + | 23 10 | ) | ( | 10 | x | − | 3 | ) | = | 0 |
Left side of the equation = | x | ( | 10 | x | − | 3 | ) | + | 23 10 | ( | 10 | x | − | 3 | ) |
= | x | × | 10 | x | − | x | × | 3 | + | 23 10 | ( | 10 | x | − | 3 | ) |
= | x | × | 10 | x | − | 3 | x | + | 23 10 | × | 10 | x | − | 23 10 | × | 3 |
= | x | × | 10 | x | − | 3 | x | + | 23 | x | − | 69 10 |
= | x | × | 10 | x | + | 20 | x | − | 69 10 |
x | × | 10 | x | + | 20 | x | − | 69 10 | = | 0 |
x1= | - | 23 10 |
x2= | 3 10 |