Let A be a 3x3 real matriz. Let $\displaystyle $$m(x)=(x-c)(x{^2}+ax+b)$$$ be A`s minimal polynomial such that cannot be written in linear factors. Prove A is similar to

$\displaystyle $$\[ \left( \begin{array}{ccc}

0 & -b & 0 \\

1 & -a & 0 \\

0 & 0 & c \end{array} \right)\$$$