1.
State the number of positive real zeros for the polynomial
f
(
x
) =
x
3
+ 4
x
2
+
x
+ 5.
A.
3
B.
0
C.
2
D.
1
Hint
2.
One zero of
p
(
x
) =
x
3
- 3
x
2
- 6
x
+ 8 is 1. Which of the following is another zero?
A.
1 +
i
B.
-1
C.
1 -
i
D.
4
Hint
3.
Which is not a root of
z
3
+ 8 = 0?
A.
-2
B.
C.
D.
2
Hint
4.
How many possible positive real zeros are there for the polynomial
?
A.
2
B.
5
C.
3
D.
1
Hint
5.
How many possible real zeros are there for the polynomial
?
A.
0
B.
4
C.
6
D.
2
Hint