Solution - Power equations

Step  1  :

 1.1     256 = 28

(256)¹ = (2⁸)¹ = 2⁸

Equation at the end of step  1  :

Step  2  :

            28
 Simplify   ——
            4 

Dividing exponents :

 2.1    2⁸   divided by   2²   = 2^{(8 - 2)} = 2⁶

Final result :

  64