Solution - Power equations

Step  1  :

 1.1     10 = 2•5

(10)² = (2•5)² = 2² • 5²

Equation at the end of step  1  :

Step  2  :

            (22•52)
 Simplify   ———————
               2   

Dividing exponents :

 2.1    2²   divided by   2¹   = 2^{(2 - 1)} = 2¹ = 2

Final result :

  50