Question 1155408
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First, for your and for @MathLover1 info

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    a quartic function is a polynomial of the degree 4 (four, FOUR), by the definition.
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Second, &nbsp;the meaning of your question, &nbsp;saying 

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    "with only the two real zeros given?"
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and listing then &nbsp;4 &nbsp;(four, FOUR) &nbsp;values for zeroes, &nbsp;<U>is very &nbsp;FAR &nbsp;OUT &nbsp;of the common sense</U>.