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F2 - Factoriser avec a² - b²
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Nom et prénom
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Classe
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3B
3E
Question 1
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Complète a² - b² =
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Question 2
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x² - 1 peut s'écrire
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Question 3
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4x² - 9 peut s'écrire ...
(2x-3)²
(4x + 9)(4x - 9)
(2x + 3)(2x - 3)
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