

1. 
If you solve x^{2}  8x  20 = 0 by the method of completing the square, add 20 to each side and then ____. 


A. 
add 4 to each side 
B. 
add 16 to each side 


C. 
add 32 to each side 
D. 
add 8 to each side 


Hint 


2. 
If you solve 2m^{2} + 8m + 1 = 0 by completing the square, first divide each side of the equation by ____. 


A. 
1 
B. 
8 


C. 

D. 
2 


Hint 


3. 
The equation x^{2} + x  1 = 0 cannot be solved by ____. 


A. 
using the quadratic formula 
B. 
graphing 


C. 
factoring 
D. 
completing the square 


Hint 


4. 
Solve the equation 2x^{2} x + 4 = 0 by any method. 


A. 
1 i 
B. 
i 


C. 
i 
D. 
i 


Hint 


5. 
Find the discriminant of x^{2}  2x + 20 = 0. 


A. 
76 
B. 
76 


C. 
72 
D. 
72 


Hint 

