1.
Find (3
a
+ 4
b
)
2
A.
3
a
2
+ 24
ab
+ 4
b
2
B.
9
a
2
+ 16
b
2
C.
9
a
2
+ 24
ab
+ 16
b
2
D.
9
a
2
+ 12
ab
+ 16
b
2
Hint
2.
Find the product (3
x
+ 3)
2
.
A.
9
x
2
+ 18
x
+ 9
B.
6
x
2
+ 12
x
+ 9
C.
9
x
2
+ 12
x
+ 9
D.
6
x
2
+ 18
x
+ 9
Hint
3.
Which of the following is a difference of two squares?
A.
x
2
– 8
x
– 16
B.
x
2
+ 6x + 9
C.
x
2
– 9
D.
x
2
+ 36
Hint
4.
Find the product (3
k
2
– 2
k
)
2
.
A.
9
k
4
– 6
k
3
+ 4
k
2
B.
9
k
4
– 12
k
3
+ 4
k
2
C.
9
k
4
– 6
k
3
– 4
k
2
D.
9
k
4
– 12
k
3
– 4
k
2
Hint
5.
Find the product (4
n
+ 3)(4
n
– 3).
A.
16
n
2
+ 9
B.
16
n
2
– 24
n
– 9
C.
16
n
2
+ 24
n
– 9
D.
16
n
2
– 9
Hint