1.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
56
a
28
b
6
B.
56
a
11
b
7
C.
15
a
11
b
7
D.
15
a
28
b
6
Hint
2.
Simplify (3
a
4
b
5
c
)
4
.
A.
12
a
8
b
9
c
5
B.
3
a
16
b
20
c
4
C.
81
a
16
b
20
c
4
D.
7
a
16
b
20
c
4
Hint
3.
Simplify
Assume the denominator is not equal to zero.
A.
B.
C.
D.
Hint
4.
Simplify
. Assume the denominator is not equal to zero.
A.
B.
C.
D.
Hint
5.
Which expression is a binomial?
A.
B.
-3
xy
C.
5
x
2
y
+ 4
x
– 6
D.
5
x
- 2
Hint
6.
Arrange the terms of 4
x
2
y
3
– 2
x
4
y
+ 3
x
3
y
2
– 3 + 2
xy
so that the powers of
x
are in descending order.
A.
4
x
2
y
3
+ 3
x
3
y
2
- 2
x
4
y
+ 2
xy
– 3
B.
-3 - 2
x
4
y
+ 3
x
3
y
2
+ 4
x
2
y
3
+ 2
xy
C.
– 2
x
4
y
+ 3
x
3
y
2
+ 4
x
2
y
3
+ 2
xy
– 3
D.
-3 + 2
xy
+ 4
x
2
y
3
+ 3
x
3
y
2
- 2
x
4
y
Hint
7.
Find (4
x
2
+ 3
x
) + (7
x
2
– 5
x
– 6).
A.
11
x
4
– 2
x
2
– 6
B.
11
x
2
– 8
x
– 6
C.
11
x
2
– 2
x
– 6
D.
9
x
– 6
Hint
8.
Find the GCF of 24, 36, and 108.
A.
72
B.
24
C.
12
D.
6
Hint
9.
Find the GCF of 54
a
2
, 84
ab
, and 10
c
A.
8
ab
B.
2
C.
4
D.
2
abc
Hint
10.
Find (4
x
2
– 2
x
– 3) + (–
x
2
+ 7
x
– 4).
A.
5
x
2
+ 5
x
+ 1
B.
3
x
2
+ 5
x
+ 1
C.
3
x
2
+ 5
x
– 7
D.
5
x
2
+ 5
x
– 7
Hint
11.
Simplify 5(2
k
2
– 3
k
) – 6
k
(–
k
2
+
k
– 7).
A.
6
k
3
+ 4
k
2
+ 27
k
B.
–6
k
3
+ 4
k
2
+ 27
k
C.
–6
k
3
+ 4
k
2
– 5
k
D.
6
k
3
+ 4
k
2
– 5
k
Hint
12.
Solve
x
(
x
– 2) + 2
x
(
x
+ 3) + 10 = 3
x
(
x
– 1) + 31.
A.
x
= 2
B.
x
= 4
C.
x
= –2
D.
x
= 3
Hint
13.
Which sketch represents
A.
B.
C.
D.
Hint
14.
Which sketch represents
A.
B.
C.
D.
Hint