$1.$ Let f$($x$)=1$

x$4+3$

x$+1$ and g$($x$)=5$

$($x$4)($x$+1).$ The goal of this question is to find all values of x

where f$($x$)=$ g$($x$),$ i$.$e$.,$

$1/$x $4+3/$

x $+1=5/$

$($x $4)($x $+1)$