Mathématiques

Question

combien fait 10-[-2x(2+(-3))+5]

2 Réponse


  • A = 10 - [ -2 x (2 + (-3) ) + 5 ]

    A = 10 - [ -2 x (-1) + 5 ]

    A = 10 - [ 2 + 5 ]

    A = 10 - 7

    A = 3

  • 10 - [- 2 x (2 + (- 3)) + 5]
    = 10 - (- 2 x (2 - 3 + 5)
    = 10 - (- 2 x (7 - 3)
    = 10 - (- 2 x 4)
    = 10 - (- 8)
    = 10 + 8
    = 18

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