1.
Find the greatest common factor of 168 and 288.
A.
36
B.
2
C.
24
D.
48
Hint
2.
Find the GCF of 3
x
2
y
2
and 15
xy
.
A.
3
x
2
y
2
B.
3
xy
C.
3
x
2
y
D.
3
x
y
2
Hint
3.
Find the GCF of 16
a
3
b
2
and 12
a
2
b
.
A.
4
ab
B.
2
ab
C.
2
a
2
b
D.
4
a
2
b
Hint
4.
Factor 7
x
+ 21.
A.
7(
x
+ 21)
B.
x
(7 + 21)
C.
7(
x
+ 3)
D.
7
x
(1 + 21)
Hint
5.
The area of a rectangle can be written by the expression 24
x
4
+ 18
x
3
. Find a set of possible dimensions for this rectangle.
A.
2
x
4
by 12 + 9
x
B.
6
x
3
by 4
x
+ 3
C.
3 by 8
x
3
+ 6
x
3
D.
24
x
3
by
x
+ 18
Hint