algebra

Find all roots of f(x)=x³-7x²+20x+14 in ℤ and ℚ

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  1. What do you mean by "in Z and Q?"
    Do you want the values of x for which f(x) = 0?
    The only real root of f(x) = 0 is
    -0.5748455821794285

    There are two complex roots
    3.7874227910897145 +/- 3.163826025580645 i

    I used an online cubic solver.

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