1.
Find
f
(-2) for
f
(
x
) = 2
x
4
-
x
3
+ 5
x
+ 1.
A.
31
B.
-29
C.
-21
D.
-57
Hint
2.
One of the factors of
x
3
- 7
x
+ 6 is
x
- 1. Which of the following is one of the other factors?
A.
x
- 3
B.
x
- 2
C.
x
- 6
D.
x
+ 1
Hint
3.
What must be true in order for a term
x
–
a
to be a factor of a polynomial
f
(
x
)?
A.
f
(
a
) must be negative
B.
f
(
a
) = 0
C.
a
must be positive
D.
f
(
a
) must be positive
Hint
4.
The volume of a refrigerator is
. Its height is
x
+ 2. What are the other two dimensions?
A.
x
– 6 and
x
+ 1
B.
x
– 2 and
x
+ 3
C.
x
– 3 and
x
+ 2
D.
x
+ 6 and
x
– 1
Hint
5.
If a binomial
x
–
a
divides a polynomial, what must be true in order for it to be a factor of the polynomial?
A.
It must divide the polynomial in half.
B.
There cannot be any other factor
x
–
a
.
C.
The polynomial must be at least of degree three.
D.
The remainder must be 0.
Hint