1.
Simplify (3
a
4
b
5
c
)
4
.
A.
3
a
16
b
20
c
4
B.
7
a
16
b
20
c
4
C.
12
a
8
b
9
c
5
D.
81
a
16
b
20
c
4
Hint
2.
Which expression is a binomial?
A.
5
x
- 2
B.
-3
xy
C.
D.
5
x
2
y
+ 4
x
– 6
Hint
3.
Which expression is not a polynomial?
A.
4
x
3
y
2
- 5
xy
+ 7
B.
7
y
3
C.
3
x
2
+ 5
D.
Hint
4.
Simplify 5
a
(4
a
2
– 2
a
) + 3
a
(-2
a
2
+ 4
a
).
A.
14
a
3
+ 2
a
2
B.
10
a
3
+ 4
a
2
C.
14
a
2
+ 2
a
D.
2
a
2
+ 10
a
Hint
5.
Solve 4
a
(
a
– 4) – 7
a
=
a
(4
a
– 3) + 20.
A.
B.
a
= -2
C.
a
= -1
D.
a
= -6
Hint
6.
Factor 54
x
3
y
2
A.
2
3
· 3 ·
x
·
x
·
x
·
y
·
y
B.
2 · 27 ·
x
·
x
·
x
·
y
·
y
C.
2 · 3
3
·
x
·
x
·
x
·
y
·
y
D.
2 · 3
3
·
x
·
x
·
y
·
y
·
y
Hint
7.
Which expression is equivalent to ((3
2
)
4
)
3
?
A.
81
6
B.
27
12
C.
9
9
D.
9
6
Hint
8.
Simplify
.
A.
x
3
y
B.
x
2
y
2
C.
x
2
y
D.
x
3
y
2
Hint
9.
Find (–2
x
2
+ 5
x
– 1) – (3
x
2
– 4
x
– 6).
A.
–5
x
2
+ 9
x
+ 5
B.
–5
x
2
+ 9
x
– 7
C.
–5
x
2
+
x
+ 5
D.
–5
x
2
+
x
– 7
Hint
10.
Anthony and Sanford each throw a football. The height of Anthony's throw can represented by the equation
A
= –10
x
2
+ 15
x
+ 22, where
A
is height and
x
is the time in seconds. The height of Sanford's throw can represented by the equation
S
= –9
x
2
+ 14
x
+ 23. At time
x
, what is the combined height of the throws?
A.
–
x
2
+
x
– 1
B.
–19
x
2
+ 29
x
+ 45
C.
19
x
2
+ 29
x
+ 45
D.
x
2
–
x
+ 1
Hint
11.
Find
.
A.
3
x
– 2
B.
48
x
3
– 40
x
2
C.
12
x
– 10
D.
3
x
–
Hint
12.
Factor
A.
B.
C.
D.
Hint
13.
Which sketch represents
A.
B.
C.
D.
Hint
14.
Which sketch represents
A.
B.
C.
D.
Hint