Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-13" was replaced by "^(-13)".

Step  1  :

 1.1     10 = 2•5

(10)^-13 = (2•5)^(-13) = (2)^(-13) • (5)^(-13)

Equation at the end of step  1  :

  87 • ((2)(-13)•(5)(-13))

Step  2  :

Final result :

      87                                      
  ————————— = 8.70000 • 10-12 
  (213•513)