Chapter 6.3, Problem 20P

For each of the matrices in Problems $18$ through $23$, use a computer to assist in finding a fundamental set of solutions to the system $\text{x}\text{'}=\text{Ax}$.

$\text{A=}\left(\begin{array}{cccc}1& 8& 5& 3\\ 2& 16& 10& 6\\ 5& -14& -11& -3\\ -1& -8& -5& -3\end{array}\right)$