Question 744520
You only need to know how to do synthetic division (ideally, synthetic...) and understand what the Remainder Theorem means.  In your example, the remainder will be f(-4).



-4_____|____2____-3_____-45_____-54
_______|_________-8_____44______4
____________________________________
_______|____2____-11____-1______-50


See the remainder is -50.
{{{f(-4)=-50}}}