| 500 | ( | 1 | + | x | ) | × | 1000 | ( | 1 | + | x | ÷ | 2 | ) | = | 0 |
| Left side of the equation = | 500000 | ( | 1 | + | x | ) | ( | 1 | + | x | ÷ | 2 | ) |
| 500000 | ( | 1 | + | x | ) | ( | 1 | + | x | ÷ | 2 | ) | = | 0 |
| Left side of the equation = | 500000 | × | 1 | ( | 1 | + | x | ÷ | 2 | ) | + | 500000 | x | ( | 1 | + | x | ÷ | 2 | ) |
| = | 500000 | ( | 1 | + | x | ÷ | 2 | ) | + | 500000 | x | ( | 1 | + | x | ÷ | 2 | ) |
| = | 500000 | × | 1 | + | 500000 | x | ÷ | 2 | + | 500000 | x | ( | 1 | + | x | ÷ | 2 | ) |
| = | 500000 | + | 250000 | x | + | 500000 | x | ( | 1 | + | x | ÷ | 2 | ) |
| = | 500000 | + | 250000 | x | + | 500000 | x | × | 1 | + | 500000 | x | x | ÷ | 2 |
| = | 500000 | + | 250000 | x | + | 500000 | x | + | 250000 | x | x |
| = | 500000 | + | 750000 | x | + | 250000 | x | x |
| 500000 | + | 750000 | x | + | 250000 | x | x | = | 0 |