Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x5"   was replaced by   "x^5". 

Step  1  :

Equation at the end of step  1  :

  3x216 • x5

Step  2  :

Multiplying exponential expressions :

 2.1    x²¹⁶ multiplied by x⁵ = x^{(216 + 5)} = x²²¹

Final result :

  3x221