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tatne
@tatne
June 2021
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S’il-vous-plait aider moi j’ai un Exo
Développer en utilisant une identité remarquable
a. (5a+4) au carré
b. (3b -5) au carré
c. (7+9x)(7+9x)
Factoriser en utilisant une identité remarquable
a. 81-4x au carré
b. 36x au carré + 24x +4
c. 100y au carré-100y+25
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petitlol
A)5xa+
ERREUR SYSTEME
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lisaschwarz21
A) 5² + 2xax4 + 4² = 25 + 8a + 16 = 8a = 41
b) 3² - 2xbx(-5) + 5² =9 + 10b + 25 = 10b + 34
c) 7² + 9x² = 81x² + 49
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ERREUR SYSTEME
b) 3² - 2xbx(-5) + 5² =9 + 10b + 25 = 10b + 34
c) 7² + 9x² = 81x² + 49