Question 164349
 (f o g)(x)= 3(g(x))-4 = 3(2x^2-7)-4 = 6x^2-21-4 = 6x^2-25


(h o f)(x)= sqrt(f(x)+5) = sqrt(3x-4+5) = sqrt(3x+1)


(g o f)(-2)= 2(f(-2))^2-7 = 2(3(-2)-4)^2-7 = 2(-10)^2-7 = 193