Solution - Simplification or other simple results

Step  1  :

             x2 
 Simplify   ————
            y2x2

Canceling Out :

 1.1    Canceling out x² as it appears on both sides of the fraction line

Equation at the end of step  1  :

   d    1
  —— • ——
  dy   y2

Step  2  :

             d
 Simplify   ——
            dy

Canceling Out :

 2.1    Canceling out d as it appears on both sides of the fraction line

Equation at the end of step  2  :

  1    1
  — • ——
  y   y2

Step  3  :

Multiplying exponential expressions :

 3.1    y¹ multiplied by y² = y^{(1 + 2)} = y³

Final result :

   1
  ——
  y3