1.
Simplify 3 + 2(
xy
+ 3
z
) + 4
xy
.
A.
9
xy
+ 15
z
B.
6
xy
+ 6
z
+ 3
C.
5
xy
+ 3
z
+ 3
D.
6
xy
+ 3
z
+ 3
Hint
2.
Write an algebraic expression for the verbal expression: three times the sum of
x
and
y
increased by five times the product of
x
and 3
y
.
A.
3(
xy
) + 5(
x
+ 3
y
)
B.
3(
x
+
y
) + 5(3
xy
)
C.
3(
x
+
y
) + 5(
x
+ 3
y
)
D.
3
x
+
y
+ 5
x
(3
y
)
Hint
3.
Simplify 12
f
+ 6(3 + 4
f
).
A.
16
f
+ 18
B.
54
f
C.
36
f
+ 18
D.
34
f
Hint
4.
Simplify -5(2
x
+
y
) - 4(3
x
-
y
).
A.
-2
x
-
y
B.
2
x
- 9
y
C.
-22
x
-
y
D.
-22
x
- 9
y
Hint
5.
Simplify 4(6
m
- 2
n
) - 2(2
m
- 6
n
).
A.
20
m
- 4
n
B.
24
m
- 20
n
C.
28
m
- 20
n
D.
20
m
+ 4
n
Hint