( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | = | 1 |
Left side of the equation = | 1 | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) |
= | 1 | × | 1 | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | x | ( | 1 | + | x | ) |
= | 1 | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) |
= | 1 | × | 1 | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) |
= | 1 | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | ( | 1 | + | x | ) |
= | 1 | × | 1 | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x |
= | 1 | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) |
= | 1 | × | 1 | + | 1 | x | + | 1 | x | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 |
= | 1 | + | 1 | x | + | 1 | x | ( | 1 | + | x | ) | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x |
= | 1 | + | 1 | x | + | 1 | x | × | 1 | + | 1 | x | x | + | 1 | x | ( | 1 | + | x | ) |
= | 1 | + | 1 | x | + | 1 | x | + | 1 | x | x | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) |
= | 1 | + | 2 | x | + | 1 | x | x | + | 1 | x | ( | 1 | + | x | ) | ( | 1 | + | x | ) | + | 1 | x |
= | 1 | + | 2 | x | + | 1 | x | x | + | 1 | x | × | 1 | ( | 1 | + | x | ) | + | 1 | x |
= | 1 | + | 2 | x | + | 1 | x | x | + | 1 | x | ( | 1 | + | x | ) | + | 1 | x | x |
= | 1 | + | 2 | x | + | 1 | x | x | + | 1 | x | × | 1 | + | 1 | x | x |
= | 1 | + | 2 | x | + | 1 | x | x | + | 1 | x | + | 1 | x | x | + | 1 |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |
= | 1 | + | 3 | x | + | 1 | x | x | + | 1 | x | x | + | 1 | x | x |