Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  (3x - 1) +  (32x2 -  1)

Step  2  :

Trying to factor by splitting the middle term

 2.1     Factoring  9x²+3x-2 

The first term is,  9x²  its coefficient is  9 .
The middle term is,  +3x  its coefficient is  3 .
The last term, "the constant", is  -2 

Step-1 : Multiply the coefficient of the first term by the constant   9 • -2 = -18 

Step-2 : Find two factors of  -18  whose sum equals the coefficient of the middle term, which is   3 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -3  and  6 
                     9x² - 3x + 6x - 2

Step-4 : Add up the first 2 terms, pulling out like factors :
                    3x • (3x-1)
              Add up the last 2 terms, pulling out common factors :
                    2 • (3x-1)
Step-5 : Add up the four terms of step 4 :
                    (3x+2)  •  (3x-1)
             Which is the desired factorization

Final result :

  (3x - 1) • (3x + 2)