Answer:
C) (8,12)
Step-by-step explanation:

 
        
             
        
        
        
Answer:8 and 4
Step-by-step explanation:
8+4=12
8-4=4
(hope this helps)
 
        
             
        
        
        
Answer:
x^3-10x^2+x+120
Step-by-step explanation:
Assuming you mean roots -3, 5, 8
These happen when we have (x+3)(x-5)(x-8)=0
Expand this 
(x^2-2x-15)(x-8)=0
=x^3-2x^2-15x-8x^2+16x+120
=x^3-10x^2+x+120
 
        
             
        
        
        
Answer:
400
Step-by-step explanation:
half of 400 is 200? i need more letterssss