Find (f g)(x) and (f g)(x) for f(x) = 15x2 + 19x + 6 and g(x) = 5x + 3. (f g)(x) = 3x + 2(f g)(x) = 75x3 + 140x2 + 87x + 18(f g)(x) = 75x3 + 140x2 + 87x + 18(f g)(x) = 3x + 2(f g)(x) = 75x3 + 57x2 + 18x + 18(f g)(x) = 3x + 2(f g)(x) = 3x + 2(f g)(x) = 75x3 + 57x2 + 18x + 18
