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College algebra

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Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers,

  • College algebra -

    by inspection,
    f(x) = 7x^3+7x - x^2-1
    = 7x(x^2+1) - (x^2+1)
    = (7x-1)(x^2+1)
    and so on

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