5-(-4)+2 should be the expression
        
                    
             
        
        
        
If you combine like terms the answer is 4x
        
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
                    
             
        
        
        
1,2,4 & 8 
12*2<span> = 24</span>
32*2<span> = 64 </span>
44*2<span> = 88 </span>
 
6*4 = 24 
16*4 = 24
<span>etc. </span>
        
                    
             
        
        
        
The hypotenuse length is √(4*4 + 3*3) = 5 (not √7 I suppose)
The area is base*half height = 4*3/2 = 6.
In short, I don't think complex numbers really interfere here.