Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2". 

Step  1  :

Equation at the end of step  1  :

  5x239 • x28

Step  2  :

Multiplying exponential expressions :

 2.1    x²³⁹ multiplied by x²⁸ = x^{(239 + 28)} = x²⁶⁷

Final result :

  5x267