if you replace every x with -x and evaluate
if the resulting function is
1. the same as te original, it is even function
2. negative of the original, it s odd
f(-x)=-3(-x)^4-2(-x)-5
f(-x)=-3x^4+2x-5
compared to original
-3x^4-2x-5
it is nither the same or the exact negative
answer is neither
