1.
Use the quadratic formula to solve 6
x
2
-
x
- 1 = 0.
A.
B.
C.
D.
Hint
2.
Use the quadratic formula to solve 2
x
2
+ 7
x
+ 4 = 0. Approximate the solutions to the nearest hundredth.
A.
-3.35, -0.15
B.
1.28, 3.66
C.
-5.56, -1.44
D.
-2.78, -0.72
Hint
3.
Use the quadratic formula to solve 3
y
2
+ 2 = 8
y
. Approximate the solutions to the nearest hundredth.
A.
0.28, 2.39
B.
0.56, 4.77
C.
-0.64, 1.32
D.
0.43, 2.87
Hint
4.
Which method of solving quadratic equations is best suited for the equation
x
2
– 18
x
= 0
A.
graphing
B.
completing the square
C.
quadratic formula
D.
factoring
Hint
5.
Which of the following equations will have exactly 1 real root?
A.
4
x
2
– 8
x
+ 4
B.
9
x
2
+ 12
x
– 4
C.
x
2
– 6
x
– 9
D.
2
x
2
+ 5
x
– 16
Hint