Solution - Power equations

Step  1  :

            x2
 Simplify   ——
            7 

Equation at the end of step  1  :

   d   x2
  —— • ——
  dx   7 

Step  2  :

             d
 Simplify   ——
            dx

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   x2
  — • ——
  x   7 

Step  3  :

Dividing exponential expressions :

 3.1    x² divided by x¹ = x^{(2 - 1)} = x¹ = x

Final result :

  x
  —
  7