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     6 = 2•3

(6)^-2 = (2•3)^(-2) = (2)^(-2) • (3)^(-2)

Equation at the end of step  1  :

  0 -  ((2)(-2)•(3)(-2))

Step  2  :

Final result :

     -1              
  ——————— = -0.02778 
  (22•32)