1.
Which expression is not a polynomial?
A.
4
x
3
y
2
- 5
xy
+ 7
B.
C.
3
x
2
+ 5
D.
7
y
3
Hint
2.
Arrange the terms of 4
x
2
y
3
– 2
x
4
y
+ 3
x
3
y
2
– 3 + 2
xy
so that the powers of
x
are in descending order.
A.
-3 - 2
x
4
y
+ 3
x
3
y
2
+ 4
x
2
y
3
+ 2
xy
B.
4
x
2
y
3
+ 3
x
3
y
2
- 2
x
4
y
+ 2
xy
– 3
C.
-3 + 2
xy
+ 4
x
2
y
3
+ 3
x
3
y
2
- 2
x
4
y
D.
– 2
x
4
y
+ 3
x
3
y
2
+ 4
x
2
y
3
+ 2
xy
– 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 – 4
x
2
y
+ 6
x
4
y
2
+ 2
xy
3
B.
6
x
4
y
2
- 4
x
2
y
+ 2
xy
3
+8
C.
8 + 2
xy
3
- 4
x
2
y
+ 6
x
4
y
2
D.
2
xy
3
+ 6
x
4
y
2
- 4
x
2
y
+ 8
Hint
4.
Write a polynomial to represent the area of a square with a side
x
minus the area of a triangle with a base 2
x
and a height of 5.
A.
x
2
– 2
x
+ 5
B.
4
x
C.
x
2
– 5
x
D.
x
2
– 10
x
Hint
5.
Which of the following expressions is an example of a polynomial with powers of
x
in ascending order?
A.
x
+ 2
x
3
– 2
x
2
– 5
x
4
B.
x
+ 2
x
3
+ 5
x
4
C.
x
+ 1 – 6
x
3
+ 2
x
4
D.
3
x
+ 5
x
3
– 7
x
4
– 3
Hint