x^2 + 4x + 3 + 1 = (x + 2)^2
So 1 need to be added.
 
        
             
        
        
        
Step-by-step explanation:

The product of  is negative whereas the product of
 is negative whereas the product of 
 
        
             
        
        
        
Answer:
If you go to a website with a graph place the points and look where the line sets
Step-by-step explanation:
 
        
             
        
        
        
Answer:
f(-10) = 1,100
Step-by-step explanation:
f(-10) = (-10)^2 - (-10)^3
= 100 - (-1000)
= 1,100