Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "y7"   was replaced by   "y^7". 

Step  1  :

Equation at the end of step  1  :

  2y215 • y7

Step  2  :

Multiplying exponential expressions :

 2.1    y²¹⁵ multiplied by y⁷ = y^{(215 + 7)} = y²²²

Final result :

  2y222