4989 5000 | x | − | 133 4000 | x | ( | x | − | 1 5 | ) | − | 2677 50000 | x | ( | x | − | 1 5 | ) | ( | x | − | 2 5 | ) | + | 13 5000 | x | ( | x | − | 1 5 | ) | = | 9 20 |
| Left side of the equation = | 4989 5000 | x | − | 133 4000 | x | x | + | 133 4000 | x | × | 1 5 | − | 2677 50000 | x | ( | x | − | 1 5 | ) | ( | x | − | 2 5 | ) |
| = | 4989 5000 | x | − | 133 4000 | x | x | + | 133 20000 | x | − | 2677 50000 | x | ( | x | − | 1 5 | ) | ( | x | − | 2 5 | ) | + | 13 5000 |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | ( | x | − | 1 5 | ) | ( | x | − | 2 5 | ) | + | 13 5000 | x | ( | x | − | 1 5 | ) |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | ( | x | − | 2 5 | ) | + | 2677 50000 | x | × | 1 5 |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | ( | x | − | 2 5 | ) | + | 2677 250000 | x | ( | x | − | 2 5 | ) |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | x | + | 2677 50000 | x | x |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | x | + | 2677 125000 | x | x |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | x | + | 2677 125000 | x | x |
| = | 20089 20000 | x | − | 133 4000 | x | x | − | 2677 50000 | x | x | x | + | 2677 125000 | x | x |