Question 630438
(ac+b)^(a-b) 
You would like to "maximize" a and c (pick 4 for both)
And, you would like to "minimize" b (pick 2)
(ac+b)^(a-b) 
(4*4+2)^(4-2) 
(16+2)^(2) 
(18)^(2) 
324