Answer:
We conclude that:

Step-by-step explanation:
Given the equation

First, solve (x - 8)²
Apply Perfect Square formula:    (a - b)² = a² - 2ab + b²


              
so the expression becomes

                       Add the numbers: 64+16=80
           Add the numbers: 64+16=80
Therefore, we conclude that:

 
        
             
        
        
        
Answer:
63
Step-by-step explanation:
Using the formula attached, we can setup the equation:

Then using a calculator you can solve
 
        
             
        
        
        
Answer:
7
Step-by-step explanation:
 
        
             
        
        
        
Two-hundred and forty-nine is less than two hundred and seventy-one
        
                    
             
        
        
        
Hello!
In order to solve this equation, you need to divide both sides by 2:


Hope it helps! :)
Have a great day!