Find the following for the given functions. f(x) = v x2 - 64, g(x) = Vx+8 (a) (f+ g)(x) = Vx- - 64 + Vx+8 (b) (f - g)(x) = x2 - 64 - Vx+8 (c) (fg) (x) = (Vx2 -64 ) (Vx+8 (d) (, ) (x) = Vx-8 What is the domain of -? (Enter your answer using interval notation.) g 8, Do X