Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x4"   was replaced by   "x^4". 

Step  1  :

            1
 Simplify   —
            3

Equation at the end of step  1  :

  1
  — • x48
  3

Step  2  :

Final result :

  x48
  ———
   3