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  :

 1.1     8 = 23

(8)^-3 = (2³)^(-3) = (2)^(-9)

Equation at the end of step  1  :

Step  2  :

                 1
 Divide  7  by  ——
                29

Final result :

  (7•29)