| X | ( | 2 | X | + | 1 100 | ) | ( | 2 | X | + | 1 100 | ) | = | 561 100000000000000 |
| Left side of the equation = | X | × | 2 | X | ( | 2 | X | + | 1 100 | ) | + | X | × | 1 100 | ( | 2 | X | + | 1 100 | ) |
| = | X | × | 2 | X | × | 2 | X | + | X | × | 2 | X | × | 1 100 | + | X | × | 1 100 | ( | 2 | X | + | 1 100 | ) |
| = | X | × | 4 | X | X | + | X | × | 1 50 | X | + | X | × | 1 100 | ( | 2 | X | + | 1 100 | ) |
| = | X | × | 4 | X | X | + | X | × | 1 50 | X | + | X | × | 1 100 | × | 2 | X | + | X |
| = | X | × | 4 | X | X | + | X | × | 1 50 | X | + | X | × | 1 50 | X | + | X | × | 1 10000 |
| X | × | 4 | X | X | + | X | × | 1 50 | X | + | X | × | 1 50 | X | + | 1 10000 | X | = | 561 100000000000000 |