Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-2" was replaced by "^(-2)".

Step  1  :

 1.1     4 = 22

(4)^-2 = (2²)^(-2) = (2)^(-4)

Equation at the end of step  1  :

  0 -  (2)(-4)

Step  2  :

Final result :

  -1            
  —— = -0.06250 
  24