Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x7"   was replaced by   "x^7". 

Step  1  :

Equation at the end of step  1  :

  (0 -  (2 • (x2))) -  (2•5x72)
 Step  2  :

Equation at the end of step  2  :

  (0 -  2x2) -  (2•5x72)

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   -10x⁷² - 2x²  =   -2x² • (5x⁷⁰ + 1) 

Final result :

  -2x2 • (5x70 + 1)