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.
Factor
xy
– 6 + 2
y
– 3
x
.
A.
x(y
– 3) + 2(
y
– 3)
B.
(
x
+ 2)(
y
– 3)
C.
(
x
– 2)(
y
– 3)
D.
(
xy
– 3
x
) + (2
y
– 6)
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
= 2
B.
x
= 0
C.
x
= 0 or
x
= 2
D.
x
= 0 or
x
= -2
Hint
5.
If the product of two factors is 0, which of the following cannot be true?
A.
Both of the factors are 0.
B.
Neither of the factors is 0.
C.
One of the factors is 10.
D.
One of the factors is 0.
Hint