1 The roots of the cubic equation
$$x ^ { 3 } - 5 x ^ { 2 } + 13 x - 4 = 0$$
are \(\alpha , \beta , \gamma\).
- Find the value of \(\alpha ^ { 2 } + \beta ^ { 2 } + \gamma ^ { 2 }\).
- Find the value of \(\alpha ^ { 3 } + \beta ^ { 3 } + \gamma ^ { 3 }\).