1.
Factor 20
a
4
b
2
- 15
ab
+ 30
a
2
b
A.
a
2
b
(20
a
2
b
- 15 + 30
a
)
B.
5(4
a
4
b
2
- 3
ab
+ 10
a
2
b
)
C.
5
ab
(4
a
3
b
- 3 + 6
a
)
D.
5
a
2
b
(15
a
2
b
- 10 + 25
a
)
Hint
2.
Factor 3
x
3
+ 2
x
2
y
+ 3
xy
2
+ 2
y
3
A.
(3
x
+ 2
y
)(
x
+
y
)(
x
-
y
)
B.
x
2
(3
x
+ 2
y
) +
y
2
(3
x
+ 2
y
)
C.
(
x
2
+
y
2
)(3
x
+ 2
y
)
D.
xy
(3
x
2
+ 2
x
+ 3
y
+ 2
y
2
)
Hint
3.
An expression for the area of a rectangle is
xy
– 2
x
+ 3
y
– 6. Express this area in factored form.
A.
(
xy
– 2
x
)( 3
y
– 6)
B.
x
(
y
– 2) + 3(
y
– 2)
C.
(
x
– 2)(
y
+ 3)
D.
(
x
+ 3)(
y
– 2)
Hint
4.
Solve 5
x
2
– 10
x
= 0.
A.
x
= 0
B.
x
= 2
C.
x
= 0 or
x
= -2
D.
x
= 0 or
x
= 2
Hint
5.
What is the factored form of the polynomial 23
x
2
– 69
x
?
A.
23
x
(
x
– 3)
B.
23
x
(
x
2
– 3)
C.
23
x
(
x
+ 3)
D.
23
x
(
x
2
+ 3)
Hint