Mathématiques

Question

DEVELOPPE ET REDUITS
A = 5 (2x-7 )
B = -4 (-3x + 1)
C = (-4x+3) (2x+1)
D = (7x-2) (5x-4)

2 Réponse

  • A = 5 (2x-7 )
    a = 10x-35

    B = -4 (-3x + 1)
    b = +12x-4
    b = 12x-4

    C = (-4x+3) (2x+1)
    c = -8x-4x+6x+3
    c = -6x+3

    D = (7x-2) (5x-4)
    d = 35x²-28x-10x+8
    d = 35x²-38x+8

  • A = 10sc - 35
    B= 12sc -3
    C= -8sc - 4 + 6sc + 3
    D= 35sc2 - 28 -10sc + 8

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