Answer:
The numbers larger than -2 and smaller than 3 are -1,0,1,2.
Step-by-step explanation:
 
        
                    
             
        
        
        
Solution: We are given below data:

Now to find the mean deviation, we use the below formula:

Where:
 represents the summation
  represents the summation
X, represents the observation.
 represents the mean
 represents the mean
N represents the number of observation.


Therefore, the mean deviation is:

         = 4
 
        
                    
             
        
        
        
Add the following polynomials:
All polynomials are already ordered according to their degree (exponent), and therefore you can just add straight down in columns.
For x3: 2 + 1 - 3 = 0
For x2: -4 + 6 + 2 = 4 
For x: 6 - 8 -4 = -6
Constants: -3 + 12 - 7 = 2
The answer is:
4x^2 - 6x + 2