1.
Find (3
a
- 1)(5
a
+ 6).
A.
15
a
+ 13
a
-6
B.
15
a
2
+ 13
a
- 6
C.
15
a
2
- 5
a
- 6
D.
15
a
2
+ 13
a
+ 6
Hint
2.
Find (
c
2
+ 2
c
- 6)(
c
+ 5).
A.
c
3
+ 2
c
2
+ 5
B.
c
3
+ 7
c
2
+ 4
c
- 30
C.
c
3
+ 2
c
2
- 6
c
- 30
D.
c
3
+ 2
c
2
- 30
Hint
3.
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
4.
Find the area of a triangle with base 2
x
+ 3 and height 3
x
– 1.
A.
x
2
+
x
– 3
B.
6
x
2
+ 7
x
– 3
C.
3
x
2
+
x
D.
5
x
2
+ 7
x
– 3
Hint
5.
Find the product (2
x
+ 3)(3
x
– 2).
A.
6
x
2
+ 9
x
– 6
B.
6
x
2
+ 5
x
– 5
C.
6
x
2
+ 9
x
– 5
D.
6
x
2
+ 5
x
– 6
Hint