Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "t5"   was replaced by   "t^5". 

Step  1  :

Equation at the end of step  1  :

  3t216 • t5

Step  2  :

Multiplying exponential expressions :

 2.1    t²¹⁶ multiplied by t⁵ = t^{(216 + 5)} = t²²¹

Final result :

  3t221