1.
Factor
x
2
– 8
x
+ 16.
A.
(
x
- 8)
2
B.
(
x
- 4)
2
C.
(
x
+ 4)
2
D.
(
x
+ 4)(
x
– 4)
Hint
2.
Factor
x
2
-
y
4
A.
(
x
+
y
)(
x
–
y
)
B.
(
x
-
y
2
)(
x
-
y
2
)
C.
(
x
+
y
2
)(
x
+
y
)(
x
–
y
)
D.
(
x
-
y
2
)(
x
+
y
2
)
Hint
3.
Factor 10
x
2
+ 24
x
+ 8.
A.
2(
x
+ 2)(5
x
+ 2)
B.
2(
x
+ 4)(5
x
+ 1)
C.
(
x
+ 2)(5
x
+ 2)
D.
(2
x
+ 4)(5
x
+ 2)
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.
It is prime.
C.
(3
x
– 5)(3
x
– 5)
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