Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-3" was replaced by "^(-3)".

Step  1  :

            1
 Simplify   —
            8

Equation at the end of step  1  :

  1
 (—)-3
  8

Step  2  :

 2.1     8 = 2³ (8)^-3 = (2³)^(-3) = (2)^(-9)

Final result :

  29             
  —— = 512.00000 
  1