Mathématiques

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question a.b.c svp merci
question a.b.c svp merci

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  • A = 5 (4 + 11x)
    A = 20 + 55x
    A = 55x + 20

    B = 3x (2x + 1)
    B = 6x² + 3x

    C = 7 (8 - 9x)
    C = 56 - 63x
    C = - 63x + 56

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