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    rjauregui's Avatar
    rjauregui Posts: 1, Reputation: 1
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    #1

    Oct 3, 2010, 07:15 PM
    finding x-intercepts for y = 3x^3 - 11x^2 - 4x + 11
    When y is set to zero, what are the intercepts for X? There should be three.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Oct 3, 2010, 10:00 PM

    Yes, there should be three usually, but not always.



    And this polynomial cannot be easily factorised... there are no simple exact solutions.

    See for yourself:

    The solutions are:
    x = -1.04
    x = 0.941
    x = 3.76

    All rounded to 3 significant figures.

    Or maybe you inserted a mistake in your question?
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