$$\left. \begin{array} { l } { d ^ { 4 } = 17 } \\ { f = 11 } \\ { \quad = 18 } \\ { + 1 = 32 } \end{array} \right.$$
$d=-\sqrt[4]{17}i\text{ or }d=-\sqrt[4]{17}\text{ or }d=\sqrt[4]{17}i\text{ or }d=\sqrt[4]{17},\ f=11,\ \text{false},\ \text{false}$
