1.
Find (3
a
+ 4
b
)
2
A.
9
a
2
+ 16
b
2
B.
3
a
2
+ 24
ab
+ 4
b
2
C.
9
a
2
+ 24
ab
+ 16
b
2
D.
9
a
2
+ 12
ab
+ 16
b
2
Hint
2.
Find (
x
– 3)(
x
+ 3).
A.
x
2
- 6
x
- 9
B.
x
2
- 9
C.
x
2
- 6
x
+ 9
D.
x
2
+ 9
Hint
3.
Expand the expression.(9
z
+ 2)
2
A.
81
z
2
+ 4
B.
81
z
2
– 4
C.
81
z
2
+ 18
z
+ 4
D.
81
z
2
+ 36
z
+ 4
Hint
4.
Expand the expression.(6
p
– 7)
2
A.
36
p
2
– 49
B.
36
p
2
+ 49
C.
36
p
2
– 84
p
+ 49
D.
36
p
2
+ 84
p
– 49
Hint
5.
Use the difference of two squares to find the product.
A.
–(60 + 1)(60 – 1) = –3,600 + 1 = –3,599
B.
(60 + 1)(60 + 1) = 3,600 + 120 + 1 = 3,721
C.
–(60 + 1)(60 + 1) = –3,600 – 120 – 1 =– 3,721
D.
(60 + 1)(60 – 1) = 3,600 – 1 = 3,599
Hint