Solution - Simplification or other simple results

Step  1  :

Trying to factor by splitting the middle term

 1.1     Factoring  m²+18m+56 

The first term is,  m²  its coefficient is  1 .
The middle term is,  +18m  its coefficient is  18 .
The last term, "the constant", is  +56 

Step-1 : Multiply the coefficient of the first term by the constant   1 • 56 = 56 

Step-2 : Find two factors of  56  whose sum equals the coefficient of the middle term, which is   18 .

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  4  and  14 
                     m² + 4m + 14m + 56

Step-4 : Add up the first 2 terms, pulling out like factors :
                    m • (m+4)
              Add up the last 2 terms, pulling out common factors :
                    14 • (m+4)
Step-5 : Add up the four terms of step 4 :
                    (m+14)  •  (m+4)
             Which is the desired factorization

Final result :

  (m + 14) • (m + 4)