1.
Find (
x
- 4)
2
.
A.
x
2
- 8
x
+ 16
B.
x
2
- 16
C.
x
2
- 4
x
+ 16
D.
x
2
+ 16
Hint
2.
Find (
x
– 3)(
x
+ 3).
A.
x
2
+ 9
B.
x
2
- 6
x
+ 9
C.
x
2
- 6
x
- 9
D.
x
2
- 9
Hint
3.
Find the product (3
x
+ 3)
2
.
A.
6
x
2
+ 18
x
+ 9
B.
9
x
2
+ 12
x
+ 9
C.
6
x
2
+ 12
x
+ 9
D.
9
x
2
+ 18
x
+ 9
Hint
4.
The length of one side of a square is
x
+ 4. What is the area?
A.
x
2
+ 4
x
+ 16
B.
2
x
+ 8
C.
x
2
+ 8
x
+ 8
D.
x
2
+ 8
x
+ 16
Hint
5.
Find the product (4
n
+ 3)(4
n
– 3).
A.
16
n
2
+ 24
n
– 9
B.
16
n
2
+ 9
C.
16
n
2
– 9
D.
16
n
2
– 24
n
– 9
Hint