1.
Factor 14
x
2
- 28
y
2
+ 56
A.
14(
x
2
- 14
y
2
+ 42)
B.
(2
x
+ 7
y
+ 2)(7
x
- 4
y
+ 2)
C.
14(
x
2
- 2
y
2
+ 4)
D.
14
xy
(
x
- 2
y
+ 4)
Hint
2.
Factor 8
ac
+ 12
ad
+ 10
bc
+ 15
bd
.
A.
(2
c
+ 3
d
) + (4
a
+ 5
b
)
B.
(2
c
+ 3
d
)(4
a
+ 5
b
)
C.
4
a
(2
c
+ 3
d
) + 5
b
(2
c
+ 3
d
)
D.
(8
ac
+ 12
ad
) + (10
bc
+ 15
bd
)
Hint
3.
An expression for the area of a rectangle is
xy
– 2
x
+ 3
y
– 6. Express this area in factored form.
A.
(
x
+ 3)(
y
– 2)
B.
(
x
– 2)(
y
+ 3)
C.
x
(
y
– 2) + 3(
y
– 2)
D.
(
xy
– 2
x
)( 3
y
– 6)
Hint
4.
Solve 5
x
2
– 10
x
= 0.
A.
x
= 0 or
x
= -2
B.
x
= 0 or
x
= 2
C.
x
= 2
D.
x
= 0
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
2
+ 3)
D.
23
x
(
x
– 3)
Hint