Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  ((7y2 • y5) • 3) • y
 Step  2  :

Equation at the end of step  2  :

  (7•3y7) • y

Step  3  :

Multiplying exponential expressions :

 3.1    y⁷ multiplied by y¹ = y^{(7 + 1)} = y⁸

Final result :

  (7•3y8)