Answer:
Error of Andrew: Made incorrect factors from the roots 
Step-by-step explanation:
Roots of the polynomial are: 3, 2 + 2i, 2 - 2i. According to the factor theorem, if a is a root of the polynomial P(x), then (x - a) is  a factor of P(x). According to this definition:
(x - 3) , (x - (2 + 2i)) , (x - (2 - 2i)) are factors of the required polynomial.
Simplifying the brackets, we get:
(x - 3), (x - 2 - 2i), (x - 2 + 2i) are factors of the required polynomial.
This is the step where Andrew made the error. The factors will always be of the form (x - a) , not (x + a). Andrew wrote the complex factors in form of (x + a)  which resulted in the wrong answer.
So, the polynomial would be:

 
        
             
        
        
        
Answer:
In step 2, the subtraction property of equality was applied 
In step 4, the division property of equality was applied
Step-by-step explanation:
 
        
             
        
        
        
30%of 68 = 30/100*68= 3*68/10=204/10=20.4
        
                    
             
        
        
        
15/7 might be the answer I’m not sure
        
             
        
        
        
For this case we have the following inequality:
Assuming that "d" is the variable that represents the number of hours worked by Mo during this week, we have that the hours were greater than 11, according to the inequality sign.
So, the correct option is:
Mo worked more than 11 hours this week.
Answer:
Option A