Euklid. Algorithmus ergibt (Besser mal nachrechnen !) :
\( (4 X^{8}+10 X^{6}+X^{4}+8 X^{2}+4)=(2X^2+2)(2 X^{6}+3 X^{4}+8 X^{2})+5 X^{4}+5X^{2}+4 \)
\( 2 X^{6}+3 X^{4}+8 X^{2} = (3X^2+8)(5 X^{4}+5X^{2}+4)+8X^{2}+7 \)
\( 5 X^{4}+5X^{2}+4=12X^2(8X^{2}+7)+12X^{2}+4\)
\( 8X^{2}+7=5(12X^{2}+4) + 0\)
Also wäre der ggT = \( 12X^{2}+4\)