1.
Which of the following trinomials is a perfect square trinomial?
A.
4
y
2
+ 10
y
+ 25
B.
x
2
+ 16
x
+ 16
C.
9
a
2
- 12
a
+ 4
D.
r
2
- 6
r
+ 36
Hint
2.
Factor
x
2
– 8
x
+ 16.
A.
(
x
- 8)
2
B.
(
x
- 4)
2
C.
(
x
+ 4)(
x
– 4)
D.
(
x
+ 4)
2
Hint
3.
Factor
x
2
-
y
4
A.
(
x
+
y
2
)(
x
+
y
)(
x
–
y
)
B.
(
x
-
y
2
)(
x
-
y
2
)
C.
(
x
+
y
)(
x
–
y
)
D.
(
x
-
y
2
)(
x
+
y
2
)
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.
Solve the equation
x
2
–
x
+
= 0.
A.
B.
C.
D.
Hint