| ( | 9000 | − | 743 125 | x | ) | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) | × | 2800 | × | 2800 | − | 3800 | × | 3800 | ( | 2800 | − | 3583 1000 | x | ) | = | 0 |
| Left side of the equation = | ( | 9000 | − | 743 125 | x | ) | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) | × | 7840000 | − | 14440000 | ( | 2800 | − | 3583 1000 | x | ) |
| ( | 9000 | − | 743 125 | x | ) | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) | × | 7840000 | − | 14440000 | ( | 2800 | − | 3583 1000 | x | ) | = | 0 |
| Left side of the equation = | 9000 | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | 743 125 | x | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) | × | 7840000 | − | 14440000 | ( | 2800 | − | 3583 1000 | x | ) |
| = | 9000 | × | 6600 | ( | 2800 | − | 3583 1000 | x | ) | − | 9000 | × | 1403 250 | x | ( | 2800 | − | 3583 1000 | x | ) | − | 743 125 | x | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) |
| = | 59400000 | ( | 2800 | − | 3583 1000 | x | ) | − | 50508 | x | ( | 2800 | − | 3583 1000 | x | ) | − | 743 125 | x | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) | − | ( | 9000 | − | 743 125 | x | ) | × | 7840000 | − | 14440000 |
| = | 59400000 | × | 2800 | − | 59400000 | × | 3583 1000 | x | − | 50508 | x | ( | 2800 | − | 3583 1000 | x | ) | − | 743 125 | x | ( | 6600 | − | 1403 250 | x | ) | ( | 2800 | − | 3583 1000 | x | ) |