MJM15 MJM15 25-08-2020 Mathematics contestada If f(x) = 2x + 7 and g(x)= 3x² -1, what expression represents (f(g(x)) ? A 6x2 +5 B 6x2 +12 C 3x2 - 2x -8 D 3x2 + 2x + 6