Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "a3"   was replaced by   "a^3". 

Step  1  :

Multiplying exponential expressions :

 1.1    a²¹² multiplied by a³⁶ = a^{(212 + 36)} = a²⁴⁸

Final result :

  a248