| m | ( | m | + | 2 | ) | ( | m | + | 4 | ) | ( | m | + | 6 | ) | = | 0 |
| Left side of the equation = | m | m | ( | m | + | 4 | ) | ( | m | + | 6 | ) | + | m | × | 2 | ( | m | + | 4 | ) | ( | m | + | 6 | ) |
| = | m | m | m | ( | m | + | 6 | ) | + | m | m | × | 4 | ( | m | + | 6 | ) | + | m | × | 2 | ( | m | + | 4 | ) | ( | m | + | 6 | ) |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | ( | m | + | 6 | ) |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| = | m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m |
| m | m | m | m | + | m | m | m | × | 6 | + | m | m | × | 4 | m | = | 0 |