40 | ( | 1 | − | x | ) | ( | 1 | − | x | ) | = | 162 5 |
Left side of the equation = | 40 | × | 1 | ( | 1 | − | x | ) | − | 40 | x | ( | 1 | − | x | ) |
= | 40 | ( | 1 | − | x | ) | − | 40 | x | ( | 1 | − | x | ) |
= | 40 | × | 1 | − | 40 | x | − | 40 | x | ( | 1 | − | x | ) |
= | 40 | − | 40 | x | − | 40 | x | ( | 1 | − | x | ) |
= | 40 | − | 40 | x | − | 40 | x | × | 1 | + | 40 | x | x |
= | 40 | − | 40 | x | − | 40 | x | + | 40 | x | x |
= | 40 | − | 80 | x | + | 40 | x | x |
40 | − | 80 | x | + | 40 | x | x | = | 162 5 |
x1= | 1 10 |
x2= | 19 10 |