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Math Help - help!

  1. #1
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    May 2009
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    help!

    Here's the problem I was given:

    If x^2+x+1=0, find the value of (x^3+(1/x^3))^3

    Any ideas?
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  2. #2
    Like a stone-audioslave ADARSH's Avatar
    Joined
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    Given: x^2 +x +1 = 0

    Use: (x^3 -1) = (x-1)(x^2 + x +1)

    = 0


    x^3 = 1

    --
    Now just put the values .
    Take Care
    Adarsh
    Last edited by ADARSH; May 5th 2009 at 07:34 AM. Reason: -1 =/= 1
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