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Math Help - High School Algebra

  1. #1
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    High School Algebra

    I'd just like to check my work on the below problem, thanks in advance!

    (-a)^3(-a^3)^6
    ----------------
    (a^6)^9

    I Hope I wrote that correct.

    I got

    - 1/a^33

    or

    -1
    --
    a^33


    P.S.

    Is the degree of this polynomial 4?

    1-2x^4-2x^2
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by cmanser View Post
    I'd just like to check my work on the below problem, thanks in advance!

    (-a)^3(-a^3)^6
    ----------------
    (a^6)^9

    I Hope I wrote that correct.

    I got

    - 1/a^33

    or

    -1
    --
    a^33
    you answer would not be negative. you have a negative times a negative in the top

    EDIT: Actually, you (and CaptainBlack) are correct. the answer would be negative, since raisng a negative number to the 6th power makes it positive and then you are multiplying by a negative number (thanks CaptainBlack)

    P.S.

    Is the degree of this polynomial 4?

    1-2x^4-2x^2
    yes, you are correct. the degree of a polynomial is the highest power that occurs for any term
    Last edited by Jhevon; April 29th 2007 at 12:43 AM. Reason: Silly Mistake
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  3. #3
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    Thanks for the reply!
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by cmanser View Post
    I'd just like to check my work on the below problem, thanks in advance!

    (-a)^3(-a^3)^6
    ----------------
    (a^6)^9

    I Hope I wrote that correct.

    I got

    - 1/a^33

    or

    -1
    --
    a^33
    Correct

    P.S.

    Is the degree of this polynomial 4?

    1-2x^4-2x^2
    Yes.

    RonL
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  5. #5
    Grand Panjandrum
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    Quote Originally Posted by Jhevon View Post
    you answer would not be negative. you have a negative times a negative in the top
    Is that a yes or no?

    The OP has:

    (-a)^3(-a^3)^6
    ----------------
    (a^6)^9


    (-a)^3 is negative, (-a^3)^6 is positive so the whole thing is negative.

    RonL
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