Abstract
In this paper we obtain the expression of the solutions of the following recursive sequences
x(n+1) = x(n-2)x(n-3)x(n-4)/x(n)x(n-1)(+/- 1 +/- x(n-2)x(n-3)x(n-4)), n = 0.1 ,...,
where the initial conditions are arbitrary real numbers. Also, we study the behavior of the solution of these equations.