Solution - Simplification or other simple results

Step  1  :

 1.1     10 = 2•5

(10)⁷ = (2•5)⁷ = 2⁷ • 5⁷

Equation at the end of step  1  :

  (3 • (27•57))2

Step  2  :

Equation at the end of step  2  :

  (3•27•57)2

Step  3  :

Final result :

  (32•214•514)