1.
Find (4
r
+ 7
s
)(4
r
- 7
s
)
A.
16
r
2
- 49
s
2
B.
16
r
2
- 56
rs
+ 49
s
2
C.
16
r
2
+ 49
s
2
D.
16
r
2
+ 56
rs
+ 49
s
2
Hint
2.
Find
.
A.
2
B.
C.
D.
Hint
3.
Find
.
A.
B.
C.
D.
Hint
4.
Find
.
A.
B.
C.
D.
Hint
5.
Add 3
x
2
+ 2
x
- 1 and
x
2
- 3
x
+ 5.
A.
4
x
2
-
x
+ 4
B.
2
x
2
+ 5
x
+ 4
C.
2
x
2
- 5
x
- 6
D.
4
x
2
+ 5
x
- 4
Hint
6.
Use the distributive property to expand the expression.4
a
(2 + 7
a
)
A.
8 + 28
a
2
B.
8
a
+
a
2
C.
6
a
+ 28
a
2
D.
8
a
+ 28
a
2
Hint
7.
Use the diagram to write and expand an expression for the area.
A.
(
f
+ 7)(
f
+ 9) =
f
2
+ 16
f
+ 63
B.
(
f
+ 7)(
f
+ 9) =
f
2
+ 63
C.
(
f
+
f
)(7 + 9) = 32
f
D.
(
f
+ 7)(
f
+ 9) =
f
2
– 16
f
+ 63
Hint
8.
Multiply the pair of binomials.(4
z
– 2)(4
z
– 1)
A.
16
z
2
– 12
z
– 2
B.
16
z
2
– 12
z
+ 2
C.
16
z
2
+ 12
z
– 2
D.
16
z
2
– 2
Hint
9.
Expand the expression.(9
z
+ 2)
2
A.
81
z
2
+ 4
B.
81
z
2
+ 36
z
+ 4
C.
81
z
2
– 4
D.
81
z
2
+ 18
z
+ 4
Hint
10.
Solve the equation.
A.
x
= –3
B.
x
= 3
C.
x
= –2
D.
x
= 2
Hint