37 2 | × | 37 2 | + | ( | x | − | 7 | ) | ( | x | − | 7 | ) | = | x | × | 2 |
Left side of the equation = | 1369 4 | + | ( | x | − | 7 | ) | ( | x | − | 7 | ) |
1369 4 | + | ( | x | − | 7 | ) | ( | x | − | 7 | ) | = | x | × | 2 |
Left side of the equation = | 1369 4 | + | x | ( | x | − | 7 | ) | − | 7 | ( | x | − | 7 | ) |
= | 1369 4 | + | x | x | − | x | × | 7 | − | 7 | ( | x | − | 7 | ) |
= | 1369 4 | + | x | x | − | 7 | x | − | 7 | x | + | 7 | × | 7 |
= | 1369 4 | + | x | x | − | 7 | x | − | 7 | x | + | 49 |
= | 1565 4 | + | x | x | − | 14 | x |
1565 4 | + | x | x | − | 14 | x | = | x | × | 2 |