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Select the expressions that are polynomials. There may be more than one correct answer.
4x
-4
+4x
3
-x
20
-14x
28
10x
27
+2x
23
-7x
7
+`1/x^13`
12x
14
+8x
10
-2x
`8/3`
+5x
8
3x
18
-6x
3.6
-6x
7
-10x
15
5x
17
+7x
12
-11x
11
-13x
16
Box 1:
Select all correct answers
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X
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Basic
General
Intervals
Inequalities
Functions
Trig
x
x
√
n
√
|
|
(
)
π
∞
DNE
x
√
(
)
π
∞
DNE
(
)
(
]
[
)
[
]
—∞
∞
∪
DNE
<
>
≤
≥
or
All Real Numbers
DNE
log
log
n
ln
n
√
|
|
e
sin
cos
tan
arcsin
arccos
arctan
〈
〉
∞
DNE
-∞
∞
∪
DNE
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