54 because if x+y=82 and x-y=26 add 26 and 82 is 108 the divide it by 2 your answer is 54
        
                    
             
        
        
        
Because the arrow is pointing to the left, the answer to the solution set needs to be less than the the number the dot is on.
A solid dot on a number means that that number is included in the solution set.
In the picture the solid dot is on 4.5, so the solution set needs to be equal to or less than 4.5.
The answer is:
{x | x ≤ 4.5}
 
        
                    
             
        
        
        
we are given with
The polynomial x squared plus 2x minus 24
 
Hence the required combination is 6x and -4x
 
        
             
        
        
        
we have 

<u>Find the greatest common factor GCF</u>
we know that

so
The GCF is equal to 
therefore

<u>the answer is</u>
The number is 