guardianneangel guardianneangel 04-08-2017 Mathematics contestada Help Please!!!!!! f(x)=5x^2+9x−4 g(x)=−8x^2−3x−4 Find (f+g)(x) My Options Are...: a. 3x^2+6x−8 b. −3x^3+6x^2−8x c. −3x^4+6x^2−8 d. −3x^2+6x−8