Find an nth degree polynomial function with real coefficients satisfying the given conditions.n = 3; -2 and -2 + 3i are zeros; leading coefficient is 1

A. f(x) = x3 + 5x2 + 21x - 14
B. f(x) = x3 - 4x2 + 21x + 26
C. f(x) = x3 + 6x2 + 21x + 26
D. f(x) = x3 + 6x2 + 15x + 26

Answer: C

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A.
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A.

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D.

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