| 86 | × | 86 | = | x | x | ( | 1 | + | 1 50 | × | 1 50 | x | x | ) | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) |
| Left side of the equation = | 7396 |
| 7396 | = | x | x | ( | 1 | + | 1 50 | × | 1 50 | x | x | ) | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) |
| Right side of the equation = | x | x | × | 1 | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) | + | x | x | × | 1 50 | × | 1 50 | x | x | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) |
| = | x | x | × | 1 | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) | + | x | x | × | 1 2500 | x | x | ( | 1 | + | 3 100 | × | 3 100 | x | x | ) |
| = | x | x | × | 1 | × | 1 | + | x | x | × | 1 | × | 3 100 | × | 3 100 | x | x | + | x |
| = | x | x | × | 1 | + | x | x | × | 9 10000 | x | x | + | x | x | × | 1 2500 | x |
| = | x | x | × | 1 | + | x | x | × | 9 10000 | x | x | + | x | x | × | 1 2500 | x |
| = | x | x | × | 1 | + | x | x | × | 9 10000 | x | x | + | x | x | × | 1 2500 | x |
| 7396 | = | x | x | × | 1 | + | x | x | × | 9 10000 | x | x | + | x | x | × | 1 2500 | x |