Solution - Power equations

Step  1  :

 1.1     4 = 22

(4)³ = (2²)³ = 2⁶

Equation at the end of step  1  :

Step  2  :

 2.1     4 = 22

(4)⁵ = (2²)⁵ = 2¹⁰

Equation at the end of step  2  :

Step  3  :

            210
 Simplify   ———
            26 

Dividing exponents :

 3.1    2¹⁰   divided by   2⁶   = 2^{(10 - 6)} = 2⁴

Final result :

  16