| ( | 78089 200000000 | − | x | ) | ( | 21911 200000000 | − | 2 | x | ) | ( | 21911 200000000 | − | 2 | x | ) | = | ( | 51733 100000000 | − | x | ) | ( | 48267 100000000 | − | 2 | x | ) | ( | 48267 100000000 | − | 2 | x | ) |
| Left side of the equation = | 78089 200000000 | ( | 21911 200000000 | − | 2 | x | ) | ( | 21911 200000000 | − | 2 | x | ) | − | x | ( | 21911 200000000 | − | 2 | x | ) | ( | 21911 200000000 | − | 2 | x | ) |
| = | 78089 200000000 | × | 21911 200000000 | ( | 21911 200000000 | − | 2 | x | ) | − | 78089 200000000 | × | 2 | x | ( | 21911 200000000 | − | 2 | x | ) | − | x | ( | 21911 200000000 | − | 2 | x | ) | ( | 21911 200000000 | − | 2 | x | ) |