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35 votes
35 votes
find a cubic polynomial in standard form with real coefficients with degree 3 whose zeros are 2, and 1 i

User Jaminguy
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2.8k points

1 Answer

26 votes
26 votes
One thing to know is that if “i” is a zero, then the conjugate “-i” must also be a zero. Hope this helps!
find a cubic polynomial in standard form with real coefficients with degree 3 whose-example-1
User Gianpaolo Scrigna
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3.0k points