1.
Determine which expression is not a polynomial.
A.
B.
C.
x
2
-
y
2
+
z
2
D.
Hint
2.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
8
r
B.
3
r
- 2
s
C.
6
r
- 3
s
D.
6
r
- 4
s
Hint
3.
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
4.
Find the area of the parallelogram.
A.
(36
a
2
- 49
b
2
) cm
2
B.
(12
a
2
+ 14
b
2
) cm
2
C.
(36
a
2
- 84
a
b
- 49
b
2
) cm
2
D.
(36
a
2
+ 49
b
2
) cm
2
Hint
5.
Determine whether the expression 5
x
3
y
3
–
x
2
y
2
is a polynomial.
A.
No, because there are two terms.
B.
Cannot be determined from given information.
C.
No, because there are two variables.
D.
Yes.
Hint