nazlauralee nazlauralee 28-01-2021 Mathematics contestada For f(x) = 3x +1 and g(x) = x2 - 6, find (f•g)(x). O A. 3x3 + x2 -18x - 6 O B. 3x2-17 O C. 4x2 - 6x -8 O D. 3x3 + x2 - 6x - 6