1.
Find (
x
+ 3)(
x
- 5).
A.
x
2
+ 2
x
- 15
B.
x
2
+ 8
x
- 15
C.
x
2
- 2
x
- 15
D.
x
2
- 15
Hint
2.
Find (4
y
- 5)(3
y
- 7).
A.
12
y
2
+ 35
B.
12
y
2
– 43
y
- 35
C.
12
y
2
– 13
y
+ 35
D.
12
y
2
– 43
y
+ 35
Hint
3.
Find (3
x
+ 4)(5
x
2
– 4
x
+ 6).
A.
15
x
3
+ 8
x
2
+ 2
x
+ 24
B.
8
x
2
- 13
x
+ 24
C.
15
x
3
+ 32
x
2
+ 34
x
+ 24
D.
5
x
2
+
x
+ 10
Hint
4.
Find the area of a triangle with base 2
x
+ 3 and height 3
x
– 1.
A.
5
x
2
+ 7
x
– 3
B.
6
x
2
+ 7
x
– 3
C.
3
x
2
+
x
D.
x
2
+
x
– 3
Hint
5.
Find the product (2
x
+ 3)(3
x
– 2).
A.
6
x
2
+ 5
x
– 5
B.
6
x
2
+ 9
x
– 6
C.
6
x
2
+ 9
x
– 5
D.
6
x
2
+ 5
x
– 6
Hint