Step by Step Solution
Step 1 :
              x 
 Simplify   ————
            y2x2
Dividing exponential expressions :
1.1 x1 divided by x2 = x(1 - 2) = x(-1) = 1/x1 = 1/x
Equation at the end of step 1 :
   d    1 
  —— • ———
  dy   y2x
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   y2x
Step 3 :
Multiplying exponential expressions :
3.1 y1 multiplied by y2 = y(1 + 2) = y3
Final result :
   1 
  ———
  y3x
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