4 because the triangles equals half and a square equals a full
        
                    
             
        
        
        
C. 56 
Hope this helped lol I needed more characters
        
             
        
        
        
Answer:
By closure property of multiplication and addition of integers, 
If  is an integer
 is an integer
∴  is an integer
 is an integer
From which we have;
 is an integer
 is an integer
Step-by-step explanation:
The given expression for the positive integer is x + x⁻¹
The given expression can be written as follows;

By finding the given expression raised to the power 3, sing Wolfram Alpha online, we we have;

By simplification of the cube of the given integer expressions, we have;

Therefore, we have;

By rearranging, we get;

Given that   is an integer, from the closure property, the product of two integers is always an integer, we have;
 is an integer, from the closure property, the product of two integers is always an integer, we have;
  is an integer and
 is an integer and  is also an integer
 is also an integer
Similarly the sum of two integers is always an integer, we have;
 is an integer
 is an integer
 is an integer
 is an integer
From which we have;
 is an integer.
 is an integer.