Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "n2"   was replaced by   "n^2". 

Step  1  :

Equation at the end of step  1  :

  3n25 • n2

Step  2  :

Multiplying exponential expressions :

 2.1    n²⁵ multiplied by n² = n^{(25 + 2)} = n²⁷

Final result :

  3n27