PhineusH81690 PhineusH81690 29-10-2022 Mathematics contestada If f(x)- 3-2 and g(x)= 3x2 +2% -6, find (1 +9)(x).O A. x2 + 12REFB. 3x+3x-8O C. 3x2+x=8+{-D. 3x+3x+43?