Mathématiques
Kimlove20
7

regarder la photo que lexercice 31 merci

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Compte supprimé

A=(x+4)(x-6)+(1-x)(x-6)   =(x-6)[(x+4)+(1-x)   =(x-6)(x+4+1-x)   =(x-6)(5)   =5(x-6) B=(7x-4)(x+4)+(7x-4)(7x-1) B=(7x-4)[(x+4)+(7x-1)] B=(7x-4)(x+4+7x-1) B=(7x-1)(8x+3) TU FAIS PAREIL POUR LES DEUX AUTRES

emirdu95

Exercice 31 : A = (x + 4) (x - 6) + (- 1 + x) (x - 6) A = (x - 6) [(x + 4) + (- 1 + x)] A = (x - 6) (x + 4 - 1 + x) A = (x - 6) (2x + 3) B = (7x - 4) (x + 4) + (7x - 4) (7x - 1) B = (7x - 4) [(x + 4) + (7x - 1)] B = (7x - 4) (x + 4 + 7x - 1) B = (7x - 4) (8x + 3) C = (x + 1) (5x - 6) - (5x - 6) (- 1 + 4x) C = (5x - 6) [(x + 1) - (- 1 + 4x)] C = (5x - 6) (x + 1 + 1 - 4x) C = (5x - 6) (- 3x + 2) D = (3x + 8) (x + 4) - (x - 1) (3x + 8) D = (3x + 8) [(x + 4) - (x - 1)] D = (3x + 8) (x + 4 - x + 1) D = (3x + 8) * 5

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