Mathématiques

Question

Développer ;
A= 27(x+5)

Factoriser :
B=18x+54

C=(4x-1)(x+3)-5(4x-1)

1 Réponse

  • 1) A = 27 (x + 5)
    A = 27 X x + 27 X 5
    A = 27x + 135

    2) B = 18x + 54 
    B = 18 X x + 3 X 18
    B = 18 (x + 3)

    C = (4x - 1) (x + 3) - 5 (4x - 1)
    C = (4x - 1) (x + 3 - 5)
    C = (4x - 1) (x - 2)

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