Solution - Simplification or other simple results

Step  1  :

Equation at the end of step  1  :

  (22x2 -  12x) +  9

Step  2  :

Trying to factor by splitting the middle term

 2.1     Factoring  4x²-12x+9 

The first term is,  4x²  its coefficient is  4 .
The middle term is,  -12x  its coefficient is  -12 .
The last term, "the constant", is  +9 

Step-1 : Multiply the coefficient of the first term by the constant   4 • 9 = 36 

Step-2 : Find two factors of  36  whose sum equals the coefficient of the middle term, which is   -12 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -6  and  -6 
                     4x² - 6x - 6x - 9

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

Multiplying Exponential Expressions :

 2.2    Multiply  (2x-3)  by  (2x-3) 

The rule says : To multiply exponential expressions which have the same base, add up their exponents.

In our case, the common base is  (2x-3)  and the exponents are :
          1 , as  (2x-3)  is the same number as  (2x-3)¹ 
 and   1 , as  (2x-3)  is the same number as  (2x-3)¹ 
The product is therefore,  (2x-3)⁽¹⁺¹⁾ = (2x-3)² 

Final result :

  (2x - 3)2