Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "n1"   was replaced by   "n^1". 

Step  1  :

Equation at the end of step  1  :

  5n219 • n12

Step  2  :

Multiplying exponential expressions :

 2.1    n²¹⁹ multiplied by n¹² = n^{(219 + 12)} = n²³¹

Final result :

  5n231