Solution - Simplification or other simple results

Step  1  :

 1.1     9 = 32

(9)² = (3²)² = 3⁴

Equation at the end of step  1  :

  
 Step  2  :
            34
 Simplify   ——
            4 

Final result :

  81            
  —— = 20.25000 
  4