fn(fn+1+fn-1)=

Solution for fn(fn+1+fn-1)= equation:

Simplifying
fn(fn + 1 + fn + -1) = 0

Reorder the terms:
fn(1 + -1 + fn + fn) = 0

Combine like terms: 1 + -1 = 0
fn(0 + fn + fn) = 0
fn(fn + fn) = 0

Combine like terms: fn + fn = 2fn
fn(2fn) = 0

Remove parenthesis around (2fn)
fn * 2fn = 0

Reorder the terms for easier multiplication:
2fn * fn = 0

Multiply fn * fn
2f2n2 = 0

Solving
2f2n2 = 0

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '2'.
f2n2 = 0

Simplifying
f2n2 = 0

The solution to this equation could not be determined.