1.
Factor
x
2
– 8
x
+ 16.
A.
(
x
- 8)
2
B.
(
x
+ 4)(
x
– 4)
C.
(
x
+ 4)
2
D.
(
x
- 4)
2
Hint
2.
Factor
x
2
-
y
4
A.
(
x
-
y
2
)(
x
+
y
2
)
B.
(
x
+
y
)(
x
–
y
)
C.
(
x
-
y
2
)(
x
-
y
2
)
D.
(
x
+
y
2
)(
x
+
y
)(
x
–
y
)
Hint
3.
Factor 6
a
3
b
5
– 15
a
2
b
.
A.
3
a
3
b
(2
ab
2
- 5)
B.
3(2
a
3
b
5
- 5
a
2
b
)
C.
ab
(6
a
2
b
4
- 15
a
)
D.
3
a
2
b
(2
ab
4
- 5)
Hint
4.
Determine whether the trinomial 9
x
2
– 60
x
+ 25 is a perfect square trinomial. If so, factor it.
A.
(3
x
+ 5)(3
x
+ 5)
B.
(3
x
– 5)(3
x
+ 5)
C.
It is prime.
D.
(3
x
– 5)(3
x
– 5)
Hint
5.
Solve the following:
y
2
+ 6
y
+ 9 = 49.
A.
{7, –7}
B.
{10, –4}
C.
{–10, 4}
D.
{7}
Hint