Use Descartes' Rule of Signs to Determine the Possible Number

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of f(x) = 6x³ + 3x² + 3x + 4.

A) no positive reals;no negative reals
B) 1 positive real;3 negative reals or 1 negative real
C) 0 positive real;3 negative reals or 1 negative real
D) 3 positive reals or 1 positive real;no negative reals
E) 3 positive reals or 1 positive real;3 negative reals or 1 negative real