Yes you did, congratulations ;-)
        
             
        
        
        
Answer:
second number is 17, first number is 3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
You can't synthetic divide since there's no dividend. As you can't factor it so I figure you must've forgot to include something or there's no solution. 
 
        
             
        
        
        
Answer:
6, -7
Step-by-step explanation:
when I followed those instructions, that's what i got.
:)
 
        
             
        
        
        
Answer:
72
Step-by-step explanation:
The pythagorean theorem states that in a right triangle A^2 + B^2 = C^2 where A and B are the two smaller sides and C is the hypotenuse. 
Because of this, in this triangle 30^2 + B^2 = 78^2
Which means B^2 = 5184
And B = 72