1.
Solve
x
2
+ 7
x
+ 8 = 0.
A.
B.
C.
D.
Hint
2.
Solve
x
2
- 6
x
+ 25 = 0.
A.
3 ± 4
i
B.
6 ± 8
i
C.
-3 ± 4
i
D.
Hint
3.
Find the value for the discriminant for the following equation:
. Then describe the number and type of roots.
A.
The discriminant is negative, so there are two complex roots.
B.
The discriminant is 96, which is not a perfect square; therefore, there are two irrational roots.
C.
The discriminant is 100, which is not a perfect square; therefore, there are two irrational roots
D.
The discriminant is 100, which is a perfect square; therefore, there are two rational roots
Hint
4.
If a perfect square is equal to a constant, what is the best method to solve the quadratic equation?
A.
Factoring
B.
Square Root Property
C.
Quadratic Formula
D.
Completing the Square
Hint
5.
Solve
by using the quadratic formula.
A.
B.
C.
D.
Hint