Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "f2"   was replaced by   "f^2". 

Step  1  :

            248
 Simplify   ———
            25 

Equation at the end of step  1  :

                     248
  ((f2) • d) • (0 -  ———)
                     25 

Step  2  :

Final result :

  -248f2d
  ———————
    25