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.
r
2
- 6
r
+ 36
D.
x
2
+ 16
x
+ 16
Hint
2.
Factor
x
2
– 8
x
+ 16.
A.
(
x
- 4)
2
B.
(
x
+ 4)
2
C.
(
x
- 8)
2
D.
(
x
+ 4)(
x
– 4)
Hint
3.
Factor 6
a
3
b
5
– 15
a
2
b
.
A.
3
a
2
b
(2
ab
4
- 5)
B.
3
a
3
b
(2
ab
2
- 5)
C.
ab
(6
a
2
b
4
- 15
a
)
D.
3(2
a
3
b
5
- 5
a
2
b
)
Hint
4.
Determine whether the trinomial 9
x
2
– 60
x
+ 25 is a perfect square trinomial. If so, factor it.
A.
It is prime.
B.
(3
x
– 5)(3
x
+ 5)
C.
(3
x
– 5)(3
x
– 5)
D.
(3
x
+ 5)(3
x
+ 5)
Hint
5.
Factor 81
x
2
– 225.
A.
It is prime.
B.
9(3
x
– 5)(3
x
+ 5)
C.
9(9
x
– 5)(9
x
+ 5)
D.
9(9
x
– 25)(9
x
+ 25)
Hint