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perriercarollann2512
@perriercarollann2512
March 2022
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c est pour demain svp factoriser (3x+5)²-(x+2)²
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racheltmr
Bonjour !
C’est une identité remarquable.
a² - b² = (a-b)(a+b)
Donc (3x+5)² - (x+2)²
= [(3x+5)-(x+2)] [(3x+5)+(x+2)]
= (3x+5-x-2)(3x+5+x+2)
= (2x+3)(4x+7)
Voilà, j’espère que ça pourra t’aider !
1 votes
Thanks 1
perriercarollann2512
merci
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Lista de comentários
C’est une identité remarquable.
a² - b² = (a-b)(a+b)
Donc (3x+5)² - (x+2)²
= [(3x+5)-(x+2)] [(3x+5)+(x+2)]
= (3x+5-x-2)(3x+5+x+2)
= (2x+3)(4x+7)
Voilà, j’espère que ça pourra t’aider !