math
posted by lindsay on .
Given that h(x)=x+1/x2 and g(x) =4x. Find h(g)(x) and find g(h)(x).
P.S. Thanks for the correction Steve.

h(g) = (g+1)/(g2)
= ((4x)+1)/((4x)2)
= (5x)/(2x)
g(h) = 4h
= 4  (x+1)/(x2)
= (4(x2)  (x+1))/(x2)
= (3x9)/(x2)