Solution - Simplification or other simple results

Step  1  :

 1.1     12 = 22•3

(12)² = (2²•3)² = 2⁴ • 3²

Equation at the end of step  1  :

  (132) +  (24•32)

Step  2  :

Equation at the end of step  2  :

  132 +  (24•32)

Step  3  :

Final result :

  313