Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x3"   was replaced by   "x^3". 

Step  1  :

Equation at the end of step  1  :

  (0 -  (x2)) -  2x3

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   -2x³ - x²  =   -x² • (2x + 1) 

Final result :

  -x2 • (2x + 1)