Solve

y+2y+26y=0,y(0)=4,y(0)=11\displaystyle {y}{''}+{2}{y}'+{26}{y}={0},\quad{y}{\left({0}\right)}=-{4},\quad{y}'{\left({0}\right)}=-{11}

y(t)\displaystyle {y}{\left({t}\right)} =  

The behavior of the solutions are: