Bonjour pouvez-vous m'aider sur cet exercice sur les racines carrés.... Pergunta de ideia delosangelesgirl

losangelesgirl @losangelesgirl

June 2021 1 78 Report

Bonjour pouvez-vous m'aider sur cet exercice sur les racines carrés

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corentinlenclos

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Bonjour, j'espère que tu vas bien ; je te mets la réponse ci-dessous :

Exercice 8 :

$B=7\sqrt{45} -6\sqrt{20}+\sqrt{5}$

$B=7\sqrt{3\²*5} -6\sqrt{2\²*5}+\sqrt{5}$

$B=21\sqrt{5} -12\sqrt{5}+\sqrt{5}$

$B=10\sqrt{5}$

Bonne journée !

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