How graph the function and solution of a second order differential equation with Matlab in the same graph.

How can I plot the the function and the solution in the same graph?

t=dsolve('D2x+4*Dx+4*x=t^2+exp(-2*t)','Dx(0)=1','x(0)=.5');
pretty(simplify(xt))
                                 2              2
exp(-2 t)   t   t exp(-2 t) 7   t  exp(-2 t)   t    3
--------- - - + ------------- + ------------ + -- + -
    8       2         4               2         4   8

ezplot(xt),;hold on
ezplot('D2x+4*Dx+4*x=t^2+exp(-2*t)'),
Error using ezplot
D2x+4*Dx+4*x=t^2+exp(-2*t) cannot be plotted in the xy-plane.

Answer 1

[Eustace Tan]

Plot the right hand side of the equation.