Answer:
Option a - 
Step-by-step explanation:
Given : Polynomial 
To find : Select one of the factors of polynomial ?
Solution : 
The polynomial  
We factor of above polynomial by taking common terms,


From the given options,
 is one of the factors of polynomial.
 is one of the factors of polynomial.
Therefore, option a is correct.
 
        
             
        
        
        
First, split the triangle into half. 
So the angle 38 becomes 38/2=19. 
So we know two angles in the triangle:
One is 19 degrees.
The other one is 90 degrees (marked red).
The angles in a right-angled triangle add up to 180 degrees. 
So to find the x angle, we calculate it by:
180 - (90+19) = 71
(the sum of three angles) - (the sum of the two known angles) = unknown angle
So x = 71 degrees.
 
        
                    
             
        
        
        
2. $1.75
3. $1.65
4. $1.05
5. $1.55
6. $1.20
7. $1.50
8. $1.29