If f(x) = 2x and g(x) = 1. (fg)(3) II. (f - g)(4) x 2x , determine the values of the following operations: III. (2) 9 IV. (f+g) (1) The largest value of all four operations is 16. Two geometric means are inserted between 5 and 625 so the four numbers form a geometric sequence. What are these two numbers? Hint: a = a (r)" 1, where a is the first term and is the common ratio. 25, 75 O-25, -125 O 25, -125 O 25, 125