Answer:
The solutions are  and
  and 
Step-by-step explanation:
we have

Divide by  both sides
 both sides
 ------>
 ------> 
we know that
The formula to solve a quadratic equation of the form  is equal to
 is equal to

in this problem we have

so

substitute






 
        
                    
             
        
        
        
Answer:
All real number greater than equal to zero. 
Step-by-step explanation:
The function is given by 

The domain is defined as the input values so that the function is well defined. 
here, the values of x should be all real number and zero also. 
So, the correct option is  (d). 
 
        
             
        
        
        
Answer: The answer to this bummy  question is B
Step-by-step explanation: