Answer:
3
lazy approach was with a graphic plotting program, but you can also calculate it. with the pq-formula.
 p = -6
 q = 9
x = -p/2 +- sqrt( (p/2)² - q)
x = -(-6)/2 +- sqrt ( (-6/2)² - 9)
x = 3 +- sqrt(9-9)
x = 3 +- sqrt(0)
x = 3 +- 0
x = 3
 
        
                    
             
        
        
        
Answer is A 
X-3/x^2-4 has two excluded values 2, -2
        
             
        
        
        
1. Subtract 6 from both sides now you would get..
2z=-10
Now divide each side by 2z and you get
z= -5
So the answer is -5
        
                    
             
        
        
        
Answer:
7(9+n)=8 
Step-by-step explanation:
I hope this is right :)))
 
        
             
        
        
        
Answer:
D. 8x=16
Step-by-step explanation:
If y=2x, then
2x+3y=16
2x+3(2x) =16
2x +6x=16
8x=16