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Math Help - GCD polynomials

  1. #1
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    Mar 2010
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    GCD polynomials

    hi ia am having a lil problem with this q

    f(x)=x^{3}-x^{2} + 1  and g(x)=x^{2} - 4

    what is the gcd over Q[x] and F_{5}[x]

    for Q[x] i get f_{1}=f-xg=-x^{2}+4x+1
    therefore f_{2}=f_{1} +g =4x-3
    => giving me  f=f_{1}+xg=f_{2}-g+xg=(x-1)g+(4x-3)


    i think i have got ferther and i get and answer of gcd -33/16
    Now im stuck
    thanks Bobisback
    Last edited by bobisback; March 24th 2010 at 08:59 AM.
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