Answer:
v=169
Step-by-step explanation:

Divide by 4.


 
        
                    
             
        
        
        
Answer: 288.74
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:



  
  
 


Hope it helps! :)
 
        
                    
             
        
        
        
Answer: There are no real number roots (the two roots are complex or imaginary)
The discriminant D = b^2 - 4ac tells us the nature of the roots for any quadratic in the form ax^2+bx+c = 0
There are three cases
- If D < 0, then there are no real number roots and the roots are complex numbers.
- If D = 0, then we have one real number root. The root is repeated twice so it's considered a double root. This root is rational if a,b,c are rational.
- If D > 0, then we get two different real number roots. Each root is rational if D is a perfect square and a,b,c are rational.
 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
4-2(1)=4-2
4-2=2