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  :

  (4 • (x2)) -  (22•5x25)
 Step  2  :

Equation at the end of step  2  :

  22x2 -  (22•5x25)

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   4x² - 20x²⁵  =   -4x² • (5x²³ - 1) 

Final result :

  -4x2 • (5x23 - 1)