Craig Wright
04/10/2024 · Junior High School
g) \( 8 z^{4}+8 z^{3}-z-1=0 \), puis : \( 8 e^{4 z}+8 e^{3 z}-e^{z}-1=0 \)
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Pour résoudre \( 8 z^{4}+8 z^{3}-z-1=0 \), essayez des racines rationnelles ou des méthodes numériques. Substituer \( w = e^{z} \) transforme l'équation en \( 8 w^4 + 8 w^3 - w - 1 = 0 \). Utilisez des méthodes numériques pour trouver les racines et résolvez \( e^{z} \) pour obtenir les solutions de l'équation exponentielle.
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