1.
Which of the following trinomials is a perfect square trinomial?
A.
9
a
2
- 12
a
+ 4
B.
4
y
2
+ 10
y
+ 25
C.
x
2
+ 16
x
+ 16
D.
r
2
- 6
r
+ 36
Hint
2.
Factor
x
2
– 8
x
+ 16.
A.
(
x
+ 4)(
x
– 4)
B.
(
x
- 4)
2
C.
(
x
- 8)
2
D.
(
x
+ 4)
2
Hint
3.
Factor
x
2
-
y
4
A.
(
x
-
y
2
)(
x
+
y
2
)
B.
(
x
+
y
2
)(
x
+
y
)(
x
–
y
)
C.
(
x
+
y
)(
x
–
y
)
D.
(
x
-
y
2
)(
x
-
y
2
)
Hint
4.
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
5.
Factor 10
x
2
+ 24
x
+ 8.
A.
2(
x
+ 2)(5
x
+ 2)
B.
(2
x
+ 4)(5
x
+ 2)
C.
(
x
+ 2)(5
x
+ 2)
D.
2(
x
+ 4)(5
x
+ 1)
Hint