1.
Refer to the diagram below. What polynomial is modeled by the algebra tiles?
A.
-2
x
2
- 3
x
- 1
B.
3
x
2
- 2
x
- 1
C.
-2
x
2
+ 3
x
+ 1
D.
-3
x
2
+ 2
x
+ 1
Hint
2.
Find the sum (–5
x
+ 6) + (–2
x
– 7).
A.
–7
x
+ 13
B.
7
x
+ 13
C.
–7
x
+ 1
D.
–7
x
– 1
Hint
3.
Find the sum.
A.
-3
b
3
+
b
2
- 3
b
B.
-3
b
3
- 3
b
+ 1
C.
-3
b
3
-
b
2
- 3
b
D.
-3
b
3
- 3
b
Hint
4.
Find the difference.
A.
7
x
3
- 11
x
2
+ 5
x
+ 17
B.
7
x
3
- 11
x
2
+ 5
x
- 1
C.
7
x
3
- 11
x
2
- 5
x
- 1
D.
7
x
3
- 11
x
2
- 5
x
+ 17
Hint
5.
Find the measure of the third side of the triangle if the measure of the perimeter is 11
j
+ 2
k
meters.
A.
4
j
– 2
k
meters
B.
3
j
+
k
meters
C.
19
j
+ 3
k
meters
D.
8
j
– 3
k
meters
Hint