Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x3"   was replaced by   "x^3". 

Step  1  :

Equation at the end of step  1  :

  5x216 • x3

Step  2  :

Multiplying exponential expressions :

 2.1    x²¹⁶ multiplied by x³ = x^{(216 + 3)} = x²¹⁹

Final result :

  5x219