Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x8"   was replaced by   "x^8". 

Step  1  :

Equation at the end of step  1  :

  (x2) -  (2•32x81)
 Step  2  :
 Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   x² - 18x⁸¹  =   -x² • (18x⁷⁹ - 1) 

Final result :

  -x2 • (18x79 - 1)