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
- 30
B.
c
3
+ 7
c
2
+ 4
c
- 30
C.
c
3
+ 2
c
2
+ 5
D.
c
3
+ 2
c
2
- 6
c
- 30
Hint
3.
Find (4
y
- 5)(3
y
- 7).
A.
12
y
2
– 43
y
+ 35
B.
12
y
2
+ 35
C.
12
y
2
– 13
y
+ 35
D.
12
y
2
– 43
y
- 35
Hint
4.
Find the area of a triangle with base 2
x
+ 3 and height 3
x
– 1.
A.
x
2
+
x
– 3
B.
3
x
2
+
x
C.
5
x
2
+ 7
x
– 3
D.
6
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
+ 9
x
– 5
C.
6
x
2
+ 5
x
– 5
D.
6
x
2
+ 5
x
– 6
Hint