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     4 = 22

(4)^-3 = (2²)^(-3) = (2)^(-6)

Equation at the end of step  1  :

  0 -  (2)(-6)

Step  2  :

Final result :

  -1            
  —— = -0.01563 
  26