1.
Find the sum of the roots of the equation
x
2
+ 5
x
+ 9 = 0.
A.
-5
B.
9
C.
-9
D.
5
Hint
2.
Find the product of the roots of the equation 2
x
2
+ 3
x
- 4 = 0.
A.
2
B.
-
C.
-2
D.
-4
Hint
3.
Find a quadratic equation with roots
and
.
A.
8
x
2
- 14
x
+ 3 = 0
B.
4
x
2
-
x
+ 6 = 0
C.
4
x
2
- 6
x
+ 1 = 0
D.
8
x
2
- 3
x
+ 14 = 0
Hint
4.
Find a quadratic equation that has roots 6 + 2
i
and 6 - 2
i
.
A.
x
2
+12
x
- 40 = 0
B.
x
2
- 12
x
- 40 = 0
C.
x
2
+ 12
x
+ 40 = 0
D.
x
2
- 12
x
+ 40 = 0
Hint
5.
Solve 3
x
2
- 10
x
- 8 = 0.
A.
-4,
B.
, 2
C.
, 3
D.
-
, 4
Hint