Respuesta :

x2+7x-2x-14  

Final result :

 (x + 7) • (x - 2)

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2"   was replaced by   "x^2".  

Step by step solution :

Step  1  :

Trying to factor by splitting the middle term

1.1     Factoring  x2+5x-14  

The first term is,  x2  its coefficient is  1 .

The middle term is,  +5x  its coefficient is  5 .

The last term, "the constant", is  -14  

Step-1 : Multiply the coefficient of the first term by the constant   1 • -14 = -14  

Step-2 : Find two factors of  -14  whose sum equals the coefficient of the middle term, which is   5 .

     -14    +    1    =    -13  

     -7    +    2    =    -5  

     -2    +    7    =    5    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -2  and  7  

                    x2 - 2x + 7x - 14

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x-2)

             Add up the last 2 terms, pulling out common factors :

                   7 • (x-2)

Step-5 : Add up the four terms of step 4 :

                   (x+7)  •  (x-2)

            Which is the desired factorization

Final result :

 (x + 7) • (x - 2)