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Given the function `P(x) = 2x^3 +x^2 + 2x +1`

List all the potential rational zeros of `P(x)` separated by commas.

 
List the real zeros of `P(x)` as ordered pairs `(x,y)` separated by commas.

 

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   x  x  √  n√  |   | (   ) π ∞ DNE
   x  √  (   ) π ∞ DNE
( ) ( ] [ ) [ ] —∞ ∞ ∪ DNE
< > ≤ ≥ or All Real Numbers DNE
log logn ln n√  | | e 
sin cos tan arcsin arccos arctan ⟨ ⟩
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