Answer:
Step-by-step explanation:
Check attachment for solution 
 
        
             
        
        
        
(1)
we are given

we can use quadratic formula 


now, we can compare and find a , b and c 
we get 

now, we can plug these values into quadratic formula 


we can simplify it 



so, we will get solution 
{−3+i, −3−i}.........Answer
(2)
we are given equation as

Since, Jamal solve this equation by completing square
so, firstly we will move constant term on right side
so,  subtract both sides by 14


we can write 

so, we will add both sides by 4^2

we get 
 ..............Answer
..............Answer
 
        
             
        
        
        
Answer: Looks like u already answered the question
Step-by-step explanation:
 
        
             
        
        
        
Answer:
A = $ 2,541.48
A = P + I where
P (principal) = $ 2,000.00
I (interest) = $ 541.48
Step-by-step explanation:
 
        
             
        
        
        
Solve the system of equations by the addition method.
6x - y = 12
6x + y = 0
——————
12x = 12
12x/12 = 12/12
X = 1
Now plug x back into one of the equations.
6x + y = 0
6(1) + y = 0
6 + y = 0
(Subtract both sides by 6)
Y = -6