1.
Factor 14
x
2
- 28
y
2
+ 56
A.
14(
x
2
- 2
y
2
+ 4)
B.
14(
x
2
- 14
y
2
+ 42)
C.
(2
x
+ 7
y
+ 2)(7
x
- 4
y
+ 2)
D.
14
xy
(
x
- 2
y
+ 4)
Hint
2.
An expression for the area of a rectangle is
xy
– 2
x
+ 3
y
– 6. Express this area in factored form.
A.
x
(
y
– 2) + 3(
y
– 2)
B.
(
x
+ 3)(
y
– 2)
C.
(
xy
– 2
x
)( 3
y
– 6)
D.
(
x
– 2)(
y
+ 3)
Hint
3.
Solve 5
x
2
– 10
x
= 0.
A.
x
= 0 or
x
= -2
B.
x
= 0
C.
x
= 0 or
x
= 2
D.
x
= 2
Hint
4.
What is the factored form of the polynomial 23
x
2
– 69
x
?
A.
23
x
(
x
2
– 3)
B.
23
x
(
x
– 3)
C.
23
x
(
x
+ 3)
D.
23
x
(
x
2
+ 3)
Hint
5.
If the product of two factors is 0, which of the following cannot be true?
A.
Neither of the factors is 0.
B.
One of the factors is 0.
C.
One of the factors is 10.
D.
Both of the factors are 0.
Hint