Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-4" was replaced by "^(-4)".

Step  1  :

 1.1     12 = 22•3

(12)^-4 = (2²•3)^(-4) = (2)^(-8) • (3)^(-4)

Equation at the end of step  1  :

  ((2)(-8)•(3)(-4))3

Step  2  :

Final result :

      1                                       
  ————————— = 1.12157 • 10-13 
  (224•312)