Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  22x2 +  12x

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   4x² + 12x  =   4x • (x + 3) 

Final result :

  4x • (x + 3)