1.
Simplify (4
x
3
) (3
x
5
).
A.
12
x
15
B.
12
x
8
C.
7
x
8
D.
7
x
15
Hint
2.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
15
a
11
b
7
B.
56
a
28
b
6
C.
15
a
28
b
6
D.
56
a
11
b
7
Hint
3.
Simplify (4
y
4
)
3
.
A.
12
y
12
B.
64
y
12
C.
12
y
3
D.
64
y
64
Hint
4.
Simplify ((2
2
)
3
)
4
.
A.
2
12
= 4096
B.
2
9
= 512
C.
2
20
= 1,048,576
D.
2
24
=16,777,216
Hint
5.
Suppose that the base of a triangle is 3
x
y
and its height is also 3
x
y
. What is its area, expressed as a monomial?
A.
6
x
2
y
2
B.
C.
D.
x
4
Hint