$3\mathrm{.}4$ Simplify the following Boolean functions, using K$-$maps:

$7.($g$)$ F $($w$,$ x$,$ y$,$ z$)=\backslash$Sigma $(0,1,4,5,10,11,14,15)$

$8.($h$)$ F $($w$,$ x$,$ y$,$ z$)=\backslash$Sigma $(2,3,6,7,8,9,12,13)$