1.
What is the degree of 42
x
5
y
2
z
?
A.
8
B.
5
C.
2
D.
7
Hint
2.
Find (3
a
- 1)(5
a
+ 6).
A.
15
a
+ 13
a
-6
B.
15
a
2
+ 13
a
+ 6
C.
15
a
2
+ 13
a
- 6
D.
15
a
2
- 5
a
- 6
Hint
3.
Find (
c
2
+ 2
c
- 6)(
c
+ 5).
A.
c
3
+ 2
c
2
- 30
B.
c
3
+ 7
c
2
+ 4
c
- 30
C.
c
3
+ 2
c
2
- 6
c
- 30
D.
c
3
+ 2
c
2
+ 5
Hint
4.
Simplify
A.
2
k
-
j
2
k
3
B.
4
k
-
j
2
k
3
C.
2
j
k
-
j
2
k
3
D.
2
k
-
j
2
k
Hint
5.
Use synthetic division to find
A.
B.
C.
D.
2
d
3
-
d
2
+ 2
d
- 4 + 5
Hint
6.
Factor 8
a
4
b
- 3
a
b
2
c
.
A.
a
2
b
(8
a
2
- 3
b
c
)
B.
a
b
(8
a
3
- 3
b
c
)
C.
a
b
c
(8
a
3
- 3
b
)
D.
8
a
b
(
a
2
- 3
b
c
)
Hint
7.
Find
A.
81
y
B.
9
y
C.
9
y
2
D.
9|
y
3
|
Hint
8.
Simplify
A.
9
B.
C.
3
D.
27
Hint
9.
Solve
A.
49
B.
7
C.
14
D.
-49
Hint
10.
Find the product of -15
i
and its conjugate.
A.
225
B.
-225
C.
225
i
D.
15
i
Hint
11.
Simplify
A.
B.
C.
D.
Hint
12.
Express the result in scientific notation. (3 × 10
-3
)(2 × 10
9
)
A.
3 × 10
6
B.
3 × 10
12
C.
6 × 10
12
D.
6 × 10
6
Hint
13.
Factor 4
x
2
– 5
x
– 6.
A.
B.
C.
D.
(4
x
+ 3)(
x
– 2)
Hint
14.
A.
B.
3
C.
no real solution
D.
–3
Hint
15.
Solve:
A.
B.
C.
D.
Hint
16.
Simplify:
A.
B.
C.
D.
Hint
17.
Simplify
A.
B.
C.
t
D.
Hint
18.
In the equation
do you have to square both sides?
A.
yes, in order to simplify.
B.
yes, in order to isolate
x
C.
no
D.
cannot be determined
Hint