Determine between which consecutive integers one or more real zeros of f(x)=3x^4+x^3-2x^2+4 are located?

Question

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.

Answer 1

Graph it on your calculator.