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Math Help - rational numbers?

  1. #1
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    rational numbers?

    4x^3 -10x^2 -8x +6 =0

    List all 16 rational numbers which could possibly be roots of this polymonial.


    What does it mean by rational numbers? I am very confused and not sure about how to do this question.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by fvaras89 View Post
    4x^3 -10x^2 -8x +6 =0

    List all 16 rational numbers which could possibly be roots of this polymonial.


    What does it mean by rational numbers? I am very confused and not sure about how to do this question.
    A rational number is one that can be written as the ratio of two integers.

    Google for "rational roots theorem".

    CB
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  3. #3
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    Rationals

    Rational numbers are numbers that can be represented as a fraction. Counting numbers and negative numbers are Rationals.

    6 -48
    -- ---
    1 1

    But here are some other Rationals...

    .66666... = 2/3
    .9 = 9/10

    And so on. Hope this helps!!
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