Answer
First five terms: $5,2,-1,-4,-7$
Work Step by Step
Since, $a_n=a_1+(n-1)d$ we have $a_1=5 $ and $d=-3$
Therefore, $a_2=a_1+d=5-3=2$;
$a_3=a_2+d=2-3=-1$
$a_4=a_3+d=-1-3=-4$
$a_5=a_4+d=-4-3=-7$
First five terms: $5,2,-1,-4,-7$