Question 969966
The first part is unclear.


The second part is clear.


Synthetic Division to find the remainder:

______________|_________________________________
______________|
_________-1___|______1______-2_______13______k
______________|_____________-1________3_____-16
__________________________________________________
____________________1______-3_______16______k-16


{{{k-16=-8}}}
{{{k=-8+16}}}
{{{highlight(k=8)}}}