Answer:
b)  1/32
Step-by-step explanation:
1/2 x 1/2 x 1/2 x 1/2 = 1/32
 
        
             
        
        
        
Answer:
wrong
Step-by-step explanation:
(a+b)^2=(a+b)(a+b)
 =a(a+b)b(a+b)
 =a^2+ab+ab+b^2
 =a^2+2ab+b^2
i hope it helps you
 
        
             
        
        
        
For this equation you would need to combine like terms 
Step 1: -2+1= -1
Step 2: -4i+6i= 2i
so your answer to this question would be -1+2i
        
             
        
        
        
2^4x-2^3x-3
2^3=2x2x2 
Which equals 8