| 1000 | x | ( | x | + | 1 | ) | ( | x | + | 11 10 | ) | = | 1560 |
| Left side of the equation = | 1000 | x | x | ( | x | + | 11 10 | ) | + | 1000 | x | × | 1 | ( | x | + | 11 10 | ) |
| = | 1000 | x | x | ( | x | + | 11 10 | ) | + | 1000 | x | ( | x | + | 11 10 | ) |
| = | 1000 | x | x | x | + | 1000 | x | x | × | 11 10 | + | 1000 | x | ( | x | + | 11 10 | ) |
| = | 1000 | x | x | x | + | 1100 | x | x | + | 1000 | x | ( | x | + | 11 10 | ) |
| = | 1000 | x | x | x | + | 1100 | x | x | + | 1000 | x | x | + | 1000 | x |
| = | 1000 | x | x | x | + | 1100 | x | x | + | 1000 | x | x | + | 1100 | x |
| 1000 | x | x | x | + | 1100 | x | x | + | 1000 | x | x | + | 1100 | x | = | 1560 |