$$\left. \begin{array} { l } { z - ( 3 + i ) z + 4 + 3 i = 0 } \\ { F _ { 1 } = 1 \frac { 1 } { 2 } - \frac { \sqrt { 2 } } { 2 } | } \end{array} \right.$$
$z=\frac{11}{5}+\frac{2}{5}i=2.2+0.4i$
$F_{1}=\frac{3-\sqrt{2}}{2}\approx 0.792893219$
