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Bergerie18
@Bergerie18
May 2019
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Bonjour, je n'arrive pas à faire cet exercice qui est pour demain:
Factorise l'expression B= 48b2 - 12b - 42ab
avec a= -1 et b= -2
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Verified answer
Factorisation de l’expression:
B = 48b²-12b-42ab
B = 6b*(8b-2-7a)
avec a = -1 et b = -2
B = 6*(-2)*[8*(-2)-2-7*(-1)]
B = -12*(-16-2+7)
B = -12*-11 = 12*11 = 132
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Verified answer
Factorisation de l’expression:B = 48b²-12b-42ab
B = 6b*(8b-2-7a)
avec a = -1 et b = -2
B = 6*(-2)*[8*(-2)-2-7*(-1)]
B = -12*(-16-2+7)
B = -12*-11 = 12*11 = 132