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Mathematics

8th

grade

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Formule de calcul prescurtat

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14 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt

    Calculaţi 2(3x+1) + 3(1-2x)

    12x+5

    5

    12x

    6

  • 2. Multiple Choice
    2 minutes
    1 pt

    Calculaţi x2x + x + x6 : x3

    x(2x2 + 1)

    x3 + x + x2

    x3 + x

    2x2 + x

  • 3. Multiple Choice
    2 minutes
    1 pt

    Calculaţi xx + x + x : x

    x2 + 2x

    2x + 1

    x2 + 1

    x2 + x + 1

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