97 2000 | ( | x | + | 1 | ) | ( | x | + | 1 | ) | = | 2 25 |
| Left side of the equation = | 97 2000 | x | ( | x | + | 1 | ) | + | 97 2000 | × | 1 | ( | x | + | 1 | ) |
| = | 97 2000 | x | ( | x | + | 1 | ) | + | 97 2000 | ( | x | + | 1 | ) |
| = | 97 2000 | x | x | + | 97 2000 | x | × | 1 | + | 97 2000 | ( | x | + | 1 | ) |
| = | 97 2000 | x | x | + | 97 2000 | x | + | 97 2000 | ( | x | + | 1 | ) |
| = | 97 2000 | x | x | + | 97 2000 | x | + | 97 2000 | x | + | 97 2000 | × | 1 |
| = | 97 2000 | x | x | + | 97 2000 | x | + | 97 2000 | x | + | 97 2000 |
| = | 97 2000 | x | x | + | 97 1000 | x | + | 97 2000 |
97 2000 | x | x | + | 97 1000 | x | + | 97 2000 | = | 2 25 |