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