Mathématiques

Question

Factoriser a = (x-3)(x+3)-2(x-3)

1 Réponse

  • Bonjour,

    A = (x - 3)(x + 3) - 2(x - 3)

    A = (x - 3)(x + 3) - 2(x - 3)

    A = (x - 3)(x + 3 - 2)

    A = (x - 3)(x + 1)

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