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The zeros of the polynomial function are 5 and 3 \"\" 2i.

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The complex zeros occur in conjugate pairs, so, 3 + 2i is also a zero of the polynomial function.

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From the linear factorization theorem, the polynomial  f(x) can be written as :

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\"\"\"\"

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Let a = 1, to obtain f(x).

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\"\" 

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\"\".\"\"

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The polynomial function \"\".