2551 1000 | ( | 2 | + | 2 | x | ) | = | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) |
| Left side of the equation = | 2551 1000 | × | 2 | + | 2551 1000 | × | 2 | x |
| = | 2551 500 | + | 2551 500 | x |
2551 500 | + | 2551 500 | x | = | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) |
| Right side of the equation = | 2 | x | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) | + | x | x | ( | 2 | x | + | x | x | ) | ( | 2 | x | + | x | x | ) |
| = | 2 | x | × | 2 | x | ( | 2 | x | + | x | x | ) | + | 2 | x | x | x | ( | 2 | x | + | x | x | ) | + | x | x |
| = | 4 | x | x | ( | 2 | x | + | x | x | ) | + | 2 | x | x | x | ( | 2 | x | + | x | x | ) | + | x | x | ( | 2 | x | + | x | x | ) |
| = | 4 | x | x | × | 2 | x | + | 4 | x | x | x | x | + | 2 | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 2 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 2 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |
| = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |
2551 500 | + | 2551 500 | x | = | 8 | x | x | x | + | 4 | x | x | x | x | + | 4 | x | x |