| ( | 5 8 | + | 7 1000 | x | ) | ( | 2 | + | 9 250 | x | ) | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) | = | 0 |
| Left side of the equation = | 5 8 | ( | 2 | + | 9 250 | x | ) | + | 7 1000 | x | ( | 2 | + | 9 250 | x | ) | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 8 | × | 2 | + | 5 8 | × | 9 250 | x | + | 7 1000 | x | ( | 2 | + | 9 250 | x | ) | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 4 | + | 9 400 | x | + | 7 1000 | x | ( | 2 | + | 9 250 | x | ) | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 4 | + | 9 400 | x | + | 7 1000 | x | × | 2 | + | 7 1000 | x | × | 9 250 | x | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 4 | + | 9 400 | x | + | 7 500 | x | + | 63 250000 | x | x | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 4 | + | 73 2000 | x | + | 63 250000 | x | x | + | ( | 3 8 | − | 7 1000 | x | ) | ( | 1 | ) |
| = | 5 4 | + | 73 2000 | x | + | 63 250000 | x | x | + | 3 8 | ( | 1 | ) | − | 7 1000 | x | ( | 1 | ) |
| = | 5 4 | + | 73 2000 | x | + | 63 250000 | x | x | + | 3 8 | × | 1 | − | 7 1000 | x | ( | 1 | ) |
| = | 5 4 | + | 73 2000 | x | + | 63 250000 | x | x | + | 3 8 | − | 7 1000 | x | ( | 1 | ) |
| = | 13 8 | + | 73 2000 | x | + | 63 250000 | x | x | − | 7 1000 | x | ( | 1 | ) |
| = | 13 8 | + | 73 2000 | x | + | 63 250000 | x | x | − | 7 1000 | x | × | 1 |
| = | 13 8 | + | 73 2000 | x | + | 63 250000 | x | x | − | 7 1000 | x |
| = | 13 8 | + | 59 2000 | x | + | 63 250000 | x | x |
13 8 | + | 59 2000 | x | + | 63 250000 | x | x | = | 0 |