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  :

Equation at the end of step  1  :

  1 • (2)(-3)

Step  2  :

Final result :

  1           
  — = 0.12500 
  8