Answer:
Sum = 13+ 4i            Difference = -5 - 8i
Step-by-step explanation:
Given complex number as (4 -2i)  and  (9 + 6i)
Sum of these complex number is
 (4 -2i)  + (9 + 6i) = ( 4 +9) + (6i -2i)
                            = 13 +4i
Difference of these complex number is 
(4 -2i)  - (9 + 6i) = (4 -9) - (2i +6i)
                         = -5 - 8i
Hence the sum and Difference of given complex numbers are
Sum = 13+ 4i            Difference = -5 - 8i              Answer
 
        
             
        
        
        
Answer:
3306.5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$52,936
Step-by-step explanation:
1400(.14)(4) + 4(6)(9.75) = 784 + 234 = $1018/week
52(1018) = $52,936
 
        
             
        
        
        
Answer:
2, 7, 114
Step-by-step explanation:
(3 + 0.5x)(38 - 4x)
114 + 19x - 12x - 2x²
-2x² + 7x + 114
 
        
             
        
        
        
Answer:
Step-by-step explanation: