1.
Factor
x
2
– 8
x
+ 16.
A.
(
x
+ 4)
2
B.
(
x
+ 4)(
x
– 4)
C.
(
x
- 4)
2
D.
(
x
- 8)
2
Hint
2.
Factor 6
a
3
b
5
– 15
a
2
b
.
A.
3
a
2
b
(2
ab
4
- 5)
B.
ab
(6
a
2
b
4
- 15
a
)
C.
3(2
a
3
b
5
- 5
a
2
b
)
D.
3
a
3
b
(2
ab
2
- 5)
Hint
3.
Factor 10
x
2
+ 24
x
+ 8.
A.
(
x
+ 2)(5
x
+ 2)
B.
(2
x
+ 4)(5
x
+ 2)
C.
2(
x
+ 4)(5
x
+ 1)
D.
2(
x
+ 2)(5
x
+ 2)
Hint
4.
Factor 81
x
2
– 225.
A.
9(9
x
– 25)(9
x
+ 25)
B.
9(9
x
– 5)(9
x
+ 5)
C.
9(3
x
– 5)(3
x
+ 5)
D.
It is prime.
Hint
5.
Solve the following: (
q
+ 2)
2
= 25.
A.
{–3, 3}
B.
{–7, 3}
C.
{3}
D.
{–7}
Hint