1.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
8
r
B.
3
r
- 2
s
C.
6
r
- 4
s
D.
6
r
- 3
s
Hint
2.
Simplify 6
g
(-3
h
- 4).
A.
-18
g
- 4
B.
6
g
h
- 4
C.
-18
g
h
- 4
D.
-18
g
h
- 24
g
Hint
3.
Find (
c
2
+ 2
c
- 6)(
c
+ 5).
A.
c
3
+ 7
c
2
+ 4
c
- 30
B.
c
3
+ 2
c
2
+ 5
C.
c
3
+ 2
c
2
- 6
c
- 30
D.
c
3
+ 2
c
2
- 30
Hint
4.
Find the area of the parallelogram.
A.
(12
a
2
+ 14
b
2
) cm
2
B.
(36
a
2
- 84
a
b
- 49
b
2
) cm
2
C.
(36
a
2
- 49
b
2
) cm
2
D.
(36
a
2
+ 49
b
2
) cm
2
Hint
5.
Simplify (7
x
2
+ 2
x
– 3) – (2
x
2
– 11
x
+ 4)
A.
B.
C.
D.
5
x
2
+ 13
x
– 7
Hint