1.
Find (
x
+ 3)(
x
- 5).
A.
x
2
+ 8
x
- 15
B.
x
2
+ 2
x
- 15
C.
x
2
- 15
D.
x
2
- 2
x
- 15
Hint
2.
Find (4
y
- 5)(3
y
- 7).
A.
12
y
2
– 13
y
+ 35
B.
12
y
2
+ 35
C.
12
y
2
– 43
y
- 35
D.
12
y
2
– 43
y
+ 35
Hint
3.
Solve
x
2
–
x
– 72 = 0.
A.
x
= 8 or
x
= -9
B.
x
= -8 or
x
= 9
C.
x
= 9
D.
x
= -8
Hint
4.
Simplify -
a
(
a
3
- 3
a
2
+
a
).
A.
-
a
4
- 3
a
3
-
a
2
B.
-
a
3
+ 3
a
2
-
a
C.
-
a
4
+ 3
a
3
D.
-
a
4
+ 3
a
3
-
a
2
Hint
5.
Find 5
x
(2
x
2
- 6
x
+ 12).
A.
10
x
3
- 30
x
+ 60
B.
10
x
3
- 30
x
2
+ 60
x
C.
10
x
3
- 30
x
2
- 60
x
D.
10
x
2
- 30
x
+ 60
Hint
6.
Solve (
x
+ 2)(
x
+ 3) = 0.
A.
x
= 2 or
x
= 3
B.
x
= -6
C.
x
= -2 or
x
= -3
D.
x
= 6
Hint
7.
Simplify (
a
3
b
)(
a
2
b
).
A.
a
5
b
2
B.
a
6
b
2
C.
a
6
b
D.
a
5
b
Hint
8.
Simplify 8
n
2
· 2
n
p
3
.
A.
10
n
p
3
B.
16
n
p
3
C.
16
n
3
p
3
D.
10
n
3
p
3
Hint
9.
Solve 5
x
(
x
– 2) = 0.
A.
x
= 0 or
x
= 2
B.
x
= 2
C.
x
= 0 or
x
= -2
D.
x
= 0
Hint
10.
Find the product 5
x
(3
x
– 1).
A.
8
x
2
+ 4
x
B.
15
x
2
- 1
C.
15
x
2
- 5
x
D.
-2
x
Hint