[haozhou]

function dy=myfun(x,y)

dy=[y(2);2*y(2)-2*y(1)+5*exp(2*x)*sin(x);]
tspan=[0,1];
y0=[-2,-3];
[x, y]=ode23(@myfun,tspan,y0);
y1=y(:,1);
y2=y(:,2);
plot(x,y1,x,y2);就可以了