1.
Which expression is not a polynomial?
A.
7
y
3
B.
C.
4
x
3
y
2
- 5
xy
+ 7
D.
3
x
2
+ 5
Hint
2.
What is the degree of 4
x
5
– 5
xy
4
+ 3
xy
2
– 1?
A.
5
B.
0
C.
4
D.
3
Hint
3.
Arrange the terms of 6
x
4
y
2
– 4
x
2
y
+ 2
xy
3
+ 8 so that the powers of
y
are in ascending order.
A.
8 + 2
xy
3
- 4
x
2
y
+ 6
x
4
y
2
B.
6
x
4
y
2
- 4
x
2
y
+ 2
xy
3
+8
C.
2
xy
3
+ 6
x
4
y
2
- 4
x
2
y
+ 8
D.
8 – 4
x
2
y
+ 6
x
4
y
2
+ 2
xy
3
Hint
4.
What is the degree of 3
a
– 4
a
2
b
3
+
b
3
– 4
a
b
?
A.
3
B.
1
C.
2
D.
5
Hint
5.
How can the polynomial
x
2
y
2
+ 2
y
3
– 5
x
y
4
+
x
3
be written with powers of
x
in descending order?
A.
x
3
+
x
2
y
2
– 5
x
y
4
+ 2
y
3
B.
x
3
+
x
2
y
2
+ 2
y
3
– 5
x
y
4
C.
x
2
y
2
+ 2
y
3
+
x
3
– 5
x
y
4
D.
x
2
y
2
+
x
3
+ 2
y
3
– 5
x
y
4
Hint