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52
Satz von Ruffini
Ist
eine Nullstelle von
, so
mit
.
Beweis:
(Leitkoeffizient ist Einheit in
) also Polynomdivision möglich. Dividiere
durch durhc
und erhalte Darstellung
. Einsetzen von
in
gibt mit
ein Nullstelle von
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Beweis:
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Also
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