1.
Find (3
a
- 1)(5
a
+ 6).
A.
15
a
2
- 5
a
- 6
B.
15
a
2
+ 13
a
- 6
C.
15
a
2
+ 13
a
+ 6
D.
15
a
+ 13
a
-6
Hint
2.
Find (3
x
+ 4)(5
x
2
– 4
x
+ 6).
A.
8
x
2
- 13
x
+ 24
B.
15
x
3
+ 8
x
2
+ 2
x
+ 24
C.
15
x
3
+ 32
x
2
+ 34
x
+ 24
D.
5
x
2
+
x
+ 10
Hint
3.
Find (2
y
2
+ 7
y
– 5)(3
y
2
– 5
y
+ 4).
A.
5
y
2
+ 2
y
– 1
B.
6
y
4
– 35
y
2
– 20
C.
6
y
4
+ 4
y
2
– 32
y
2
– 20
D.
6
y
4
+ 11
y
3
– 42
y
2
+ 53
y
– 20
Hint
4.
In a tessellation, the sum of the measures of the angles of the polygons surrounding a point (at a vertex) is________.
A.
90
B.
720
C.
360
D.
180
Hint
5.
Find the product (2
x
+ 3)(3
x
– 2).
A.
6
x
2
+ 5
x
– 6
B.
6
x
2
+ 9
x
– 5
C.
6
x
2
+ 9
x
– 6
D.
6
x
2
+ 5
x
– 5
Hint