Question #ab41d

1 Answer
Dec 9, 2017

#g(f(x)) = (x-3)^4 / 3 #

Explanation:

The first thing that i would consider is #f(x)# we can factorise this;

#f(x) = (x-3)(x-3) = (x-3)^2 #

we know #g(x)# to be #x^2 /3 #

So #g(f(x)) # simply means where we see an #x# we replae with the expression of #f(x)#

So hence #g(f(x)) # = #(f(x))^2 /3 = ((x-3)^2)^2 /3 #

#=> g(f(x)) = (x-3)^4 /3 #