Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  ((x • (2a + b + c) -  2a) -  b) -  c

Step  2  :

 2.1    Factor  2xa+xb+xc-2a-b-c 

Try to factor this 6-term polynomial into (2-term) • (3-term)

Begin by splitting the 6-term into two 3-term polynomials:

 2xa+xb+xc  and  -2a-b-c 

Next simplify each 3-term polynomial by pulling out like terms:

 x • (2a+b+c)  and  -1 • (2a+b+c) 

Note that the two simplified polynomials have  2a+b+c  in common

Now adding the two simplified polynomials we get

 (-1+x)  •  (2a+b+c) 

Which is the desired factorization.

Final result :

  (x - 1) • (2a + b + c)