( | s | + | 2 | ) | ( | s | + | 2 | ) | ( | s | + | 3 | ) | = | 0 |
Left side of the equation = | s | ( | s | + | 2 | ) | ( | s | + | 3 | ) | + | 2 | ( | s | + | 2 | ) | ( | s | + | 3 | ) |
= | s | s | ( | s | + | 3 | ) | + | s | × | 2 | ( | s | + | 3 | ) | + | 2 | ( | s | + | 2 | ) | ( | s | + | 3 | ) |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | ( | s | + | 3 | ) | + | 2 | ( | s | + | 2 | ) | ( | s | + | 3 | ) |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | s | × | 2 | × | 3 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | s | × | 6 | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 6 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 6 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 6 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 6 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 12 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 12 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 12 | s | + | 2 |
= | s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 16 | s | + | 2 |
s | s | s | + | s | s | × | 3 | + | s | × | 2 | s | + | 16 | s | + | 2 | = | 0 |