Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2". 

Step  1  :

Equation at the end of step  1  :

  (0 -  (2 • (x2))) -  (2•13x28)
 Step  2  :

Equation at the end of step  2  :

  (0 -  2x2) -  (2•13x28)

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   -26x²⁸ - 2x²  =   -2x² • (13x²⁶ + 1) 

Final result :

  -2x2 • (13x26 + 1)