| 19600 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 19600 | × | 11 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) | × | 11 | = | 21700 | × | 15 8 |
| Left side of the equation = | 19600 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| 19600 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) | = | 21700 | × | 15 8 |
| Left side of the equation = | 19600 | × | 1 | + | 19600 | × | 2 | m | + | 2100 | ( | 1 | + | m | ) | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 19600 | + | 39200 | m | + | 2100 | ( | 1 | + | m | ) | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 19600 | + | 39200 | m | + | 2100 | × | 1 | + | 2100 | m | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 19600 | + | 39200 | m | + | 2100 | + | 2100 | m | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 21700 | + | 41300 | m | + | 215600 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 21700 | + | 41300 | m | + | 215600 | × | 1 | + | 215600 | × | 2 | m | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 21700 | + | 41300 | m | + | 215600 | + | 431200 | m | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 237300 | + | 472500 | m | + | 23100 | ( | 1 | + | 2 | m | ) | ( | 1 | + | m | ) |
| = | 237300 | + | 472500 | m | + | 23100 | × | 1 | ( | 1 | + | m | ) | + | 23100 | × | 2 | m | ( | 1 | + | m | ) |
| = | 237300 | + | 472500 | m | + | 23100 | ( | 1 | + | m | ) | + | 46200 | m | ( | 1 | + | m | ) |
| = | 237300 | + | 472500 | m | + | 23100 | × | 1 | + | 23100 | m | + | 46200 | m | ( | 1 | + | m | ) |
| = | 237300 | + | 472500 | m | + | 23100 | + | 23100 | m | + | 46200 | m | ( | 1 | + | m | ) |
| = | 260400 | + | 495600 | m | + | 46200 | m | ( | 1 | + | m | ) |
| = | 260400 | + | 495600 | m | + | 46200 | m | × | 1 | + | 46200 | m | m |
| = | 260400 | + | 495600 | m | + | 46200 | m | + | 46200 | m | m |
| = | 260400 | + | 541800 | m | + | 46200 | m | m |
| 260400 | + | 541800 | m | + | 46200 | m | m | = | 21700 | × | 15 8 |
| Right side of the equation = | 81375 2 |
| 260400 | + | 541800 | m | + | 46200 | m | m | = | 81375 2 |