Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-4" was replaced by "^(-4)".

Step  1  :

 1.1     9 = 32

(9)^-4 = (3²)^(-4) = (3)^(-8)

Final result :

   1           
  —— = 0.00015 
  38