  The asymptotic behavior (such as convergence to an equilibrium, convergence
to a 2-cycle, and divergence to infinity) of solutions of the following
multi-parameter, rational, second order difference equation x_{n+1} =(ax_{n}^3+
bx_{n}^2x_{n-1}+cx_{n}x_{n-1}^2+dx_{n-1}^3)/x_{n}^2, x_{-1},x_{0}\in R, is
studied in this paper.
