Solution - Simplification or other simple results

Step  1  :

             d
 Simplify   ——
            dx

Canceling Out :

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

Equation at the end of step  1  :

    1                 
  ((— • x2) +  x) +  1
    x                 
 Step  2  :

Final result :

  2x + 1