| 10000 | ( | 1 | + | a | a | ÷ | 25 | ) | = | a | a | ( | 1 | + | a | a | ) | ( | 1 | + | a | a | ÷ | 10000 | ) | ( | 1 | + | a | a | ÷ | 40000 | ) |
| Left side of the equation = | 10000 | × | 1 | + | 10000 | a | a | ÷ | 25 |
| = | 10000 | + | 400 | a | a |
| 10000 | + | 400 | a | a | = | a | a | ( | 1 | + | a | a | ) | ( | 1 | + | a | a | ÷ | 10000 | ) | ( | 1 | + | a | a | ÷ | 40000 | ) |
| Right side of the equation = | a | a | × | 1 | ( | 1 | + | a | a | ÷ | 10000 | ) | ( | 1 | + | a | a | ÷ | 40000 | ) | + | a | a | a | a | ( | 1 | + | a | a | ÷ | 10000 | ) | ( | 1 | + | a | a | ÷ | 40000 | ) |
| = | a | a | × | 1 | × | 1 | ( | 1 | + | a | a | ÷ | 40000 | ) | + | a | a | × | 1 | a | a | ÷ | 10000 | × | ( | 1 | + | a | a | ÷ | 40000 | ) |
| = | a | a | × | 1 | ( | 1 | + | a | a | ÷ | 40000 | ) | + | a | a | × | 1 10000 | a | a | ( | 1 | + | a | a | ÷ | 40000 | ) | + | a | a |
| = | a | a | × | 1 | × | 1 | + | a | a | × | 1 | a | a | ÷ | 40000 | + | a | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |
| 10000 | + | 400 | a | a | = | a | a | × | 1 | + | a | a | × | 1 40000 | a | a | + | a | a | × | 1 10000 | a |