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24 August, 08:40

Write a polynomial function of f of least degree with rational coefficients a leading coefficient of 1 and the given zeros - 5 2i

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  1. 24 August, 10:56
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    If I'm reading this correctly, it is

    y = (x + 5) (x + 2i) (x - 2i) = (x - 5) (x^2 + 4)

    which expands to

    y = x^3 + 5x^2 + 4x + 20
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