Answer:
-3, -1, 0, +2
Step-by-step explanation:
 
        
             
        
        
        
F(x) = x^2 + 1
f(4) = 4^2 + 1 = 16 + 1 = 17
2*f(4) = 2 * 16 = 32
        
             
        
        
        
Hey there! 
We can solve this problem by doing PEMDAS, which lists:

 We have in this equation 

Let's sp;ve this equation now! 
Parentheses ↓

Exponents ↓

Division ↓

Okay now , I show you the steps so it can be easier to solve! 

Good luck on your assignment and enjoy your day! 
~
 
        
                    
             
        
        
        
It is 0.7p= p-250. 0.7p represents the tv with a 30% discount and p-250 represents the tv with a $250 discount.