Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  (7x2 -  49x) -  7

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   7x² - 49x - 7  =   7 • (x² - 7x - 1) 

Trying to factor by splitting the middle term

 3.2     Factoring  x² - 7x - 1 

The first term is,  x²  its coefficient is  1 .
The middle term is,  -7x  its coefficient is  -7 .
The last term, "the constant", is  -1 

Step-1 : Multiply the coefficient of the first term by the constant   1 • -1 = -1 

Step-2 : Find two factors of  -1  whose sum equals the coefficient of the middle term, which is   -7 .

Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

Final result :

  7 • (x2 - 7x - 1)