1.
Find the greatest common factor of 168 and 288.
A.
48
B.
24
C.
36
D.
2
Hint
2.
What is the greatest common factor of 18
mn
2
, 54
m
4
, and 80
n
3
?
A.
18
m
2
n
3
B.
9
mn
C.
2
D.
2
mn
2
Hint
3.
Find the GCF of 16
a
3
b
2
and 12
a
2
b
.
A.
4
ab
B.
4
a
2
b
C.
2
ab
D.
2
a
2
b
Hint
4.
Factor 7
x
+ 21.
A.
7(
x
+ 3)
B.
7(
x
+ 21)
C.
7
x
(1 + 21)
D.
x
(7 + 21)
Hint
5.
Factor 15
x
3
- 5
x
2
.
A.
5
x
(3
x
2
- x)
B.
x
(15
x
2
- 5
x
)
C.
x
2
(15
x
– 5)
D.
5
x
2
(3
x
– 1)
Hint