Exact Solutions Of Two Higher Order Nonlinear Partial Differential Equations

In this paper,the trial equation method and polynomial complete discriminant system method are used to construct the exact solution of KdV2 equation and a class of nonlinear differential equations with 5th order derivative term.The obtained result is compared with those by other methods.According to the parameters,the corresponding two-dimensional images are made by using Matlab software,which make all the precise solutions obtained more intuitive.