Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  (5•7x2) -  7x

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   35x² - 7x  =   7x • (5x - 1) 

Final result :

  7x • (5x - 1)