Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x7"   was replaced by   "x^7". 

Step  1  :

Equation at the end of step  1  :

  3x210 • x7

Step  2  :

Multiplying exponential expressions :

 2.1    x²¹⁰ multiplied by x⁷ = x^{(210 + 7)} = x²¹⁷

Final result :

  3x217