1.
Select the trinomial that is
not
a perfect square trinomial.
A.
x
2
+ 8
x
+ 16
B.
9
x
2
– 6
x
+ 1
C.
25
x
2
+ 40
x
+ 16
D.
x
2
+ 9
x
+ 3
Hint
2.
Which of these represents factoring differences of squares?
A.
a
2
–
b
2
= (
a
–
b
)(
a
+
b
)
B.
a
2
+
b
2
= (
a
–
b
)(
a
+
b
)
C.
a
2
+ 2
a
b
+
b
2
= (
a
+
b
)(
a
+
b
)
D.
a
2
– 2
a
b
+
b
2
= (
a
–
b
)(
a
–
b
)
Hint
3.
Factor the trinomial 4
x
2
+ 12
x
+ 9.
A.
(2
x
+ 3)
2
B.
(2
x
– 3)
2
C.
(2
x
+ 3)(3
x
+ 2)
D.
(2
x
+ 3)(2
x
– 3)
Hint
4.
The area of a square is
x
2
– 16
x
+ 64 square units. Find the perimeter.
A.
(
x
+ 8) units
B.
(
x
– 8) units
C.
(4
x
– 32) units
D.
(4
x
+ 32) units
Hint
5.
Factor the binomial
x
2
– 5.
A.
(
x
– 5)(
x
+ 5)
B.
(
x
– 5)
2
C.
D.
Hint