Question 885930
1. f(x)=4x+2, g(x)= (1/4) * (x-2) 
(f o g)(x) = f(g(x)) = 4(1/4(x-2) + 2 = x-2 +2 = x
(g o f)(x) = g(f(x)) = 1/4 * (4x+2-2) = 4x/4 = x
2.1) h(x)=(6x-2)^2
f(x) = x^2, g(x) = (6x-2) 
(f o g)(x) = f(g(x)) = f(6x-2) = (6x-2)^2 = h(x)
2.2) h(x)= √6x +12
f(x) = √x +12, g(x) = 6x
(f o g)(x) = f(g(x)) = f(6x) =  √6x +12 = h(x)