1.
The roots of
x
2
+ 4
x
+ 7 are________.
A.
real and rational
B.
imaginary
C.
real and imaginary
D.
real and irrational
Hint
2.
Solve
x
2
- 6
x
+ 25 = 0.
A.
B.
6 ± 8
i
C.
3 ± 4
i
D.
-3 ± 4
i
Hint
3.
Solve
x
2
+ 14
x
+ 49 = 0 by using the quadratic formula.
A.
7
B.
–7
C.
6, 8
D.
–6, –8
Hint
4.
If a perfect square is equal to a constant, what is the best method to solve the quadratic equation?
A.
Quadratic Formula
B.
Square Root Property
C.
Factoring
D.
Completing the Square
Hint
5.
Solve
by using the quadratic formula.
A.
B.
C.
D.
Hint