5. Given that
$$f ( x ) = x ^ { 3 } + 7 x ^ { 2 } + p x - 6 ,$$
and that \(x = - 3\) is a solution to the equation \(\mathrm { f } ( x ) = 0\),
- find the value of the constant \(p\),
- show that when \(\mathrm { f } ( x )\) is divided by \(( x - 2 )\) there is a remainder of 50 ,
- find the other solutions to the equation \(\mathrm { f } ( x ) = 0\), giving your answers to 2 decimal places.