It can often be discerned by asking yourself this: "What is the hidden message the author wants me to understand?"
Determine between which consecutive integers one or more real zeros of f(x)=3x^4+x^3-2x^2+4 are located?
A. no real zeros
B. 0 and 1
C. -2 and -3
D. -1 and 0
I was thinking it's either A or C? I need lots of help.