50 | ( | 1 | − | 3 10 | ) | ( | 1 | + | 3 | x | ) | × | 3 10 | ( | 1 | − | x | ) | = | 0 |
Left side of the equation = | 15 | ( | 1 | − | 3 10 | ) | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
15 | ( | 1 | − | 3 10 | ) | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) | = | 0 |
Left side of the equation = | 15 | × | 1 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) | − | 15 | × | 3 10 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | × | 1 | ( | 1 | − | x | ) | + | 15 | × | 3 | x | ( | 1 | − | x | ) | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | ( | 1 | − | x | ) | + | 45 | x | ( | 1 | − | x | ) | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | × | 1 | − | 15 | x | + | 45 | x | ( | 1 | − | x | ) | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | − | 15 | x | + | 45 | x | ( | 1 | − | x | ) | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | − | 15 | x | + | 45 | x | × | 1 | − | 45 | x | x | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | − | 15 | x | + | 45 | x | − | 45 | x | x | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | + | 30 | x | − | 45 | x | x | − | 9 2 | ( | 1 | + | 3 | x | ) | ( | 1 | − | x | ) |
= | 15 | + | 30 | x | − | 45 | x | x | − | 9 2 | × | 1 | ( | 1 | − | x | ) | − | 9 2 | × | 3 | x |
= | 15 | + | 30 | x | − | 45 | x | x | − | 9 2 | ( | 1 | − | x | ) | − | 27 2 | x | ( | 1 | − | x | ) |
= | 15 | + | 30 | x | − | 45 | x | x | − | 9 2 | × | 1 | + | 9 2 | x | − | 27 2 | x |
= | 15 | + | 30 | x | − | 45 | x | x | − | 9 2 | + | 9 2 | x | − | 27 2 | x | ( | 1 | − | x | ) |
= | 21 2 | + | 69 2 | x | − | 45 | x | x | − | 27 2 | x | ( | 1 | − | x | ) |
= | 21 2 | + | 69 2 | x | − | 45 | x | x | − | 27 2 | x | × | 1 | + | 27 2 | x | x |
= | 21 2 | + | 69 2 | x | − | 45 | x | x | − | 27 2 | x | + | 27 2 | x | x |
= | 21 2 | + | 21 | x | − | 45 | x | x | + | 27 2 | x | x |
21 2 | + | 21 | x | − | 45 | x | x | + | 27 2 | x | x | = | 0 |
x1= | - | 1 3 |
x2=1 |