Find the Bounds on the real zeros

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Find the bounds on the real zeros of the following function. Please show all of your work.

f(x)= x^4 + 5x^3 + 6x^2 - 4.

  • Find the Bounds on the real zeros -

    my question is, what does "bound" mean?

  • Find the Bounds on the real zeros -

    is this the same as the vertical asymptote, if not how is different?

  • Find the Bounds on the real zeros -

    The roots of your function are not rational

    I used this source to approximate
    http://xrjunque.nom.es/precis/rootfinder.aspx
    (enter the expression x^4 + 5x^3 + 6x^2 - 4 in the input box )

    x = appr. - 3.29 and x = appr. 0.64
    with two additional complex roots.

    I don't know what "bounds of the real zeros" means, have never seen a question worded like that before.

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