Most of phenomena in nature are described by nonlinear differential equations. So scientists
in different branches of science try to solve them. But because of nonlinear part of these
groups of equations, finding an exact solution is not easy. Different analytical methods have
been applied to find a solution to them. For example, Adomian has presented and developed
a so-called decomposition method for solving algebraic, differential, integrodifferential,
differential-delay and partial differential equations. In the nonlinear case for ordinary
differential equations and partial differential equations, the method has the advantage of
dealing directly with the problem . These equations are solved without transforming
them to more simple ones. The method avoids linearization, perturbation, discretization, or
any unrealistic assumptions . Itwas suggested in that the noise terms appears always
for inhomogeneous equations. Most recently, Wazwaz established a necessary condition