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Mathematics

8th

grade

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teza matematică clasa a VIII-a, sem. I

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14 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    x2 + 4x + 4 descompus este:

    (x + 4)2

    (x + 2)2

    (x + 2)(x - 2)

    (x - 2)2

  • 2. Multiple Choice
    1 minute
    1 pt

    (2x - 1)(2x + 1) este egal cu:

    4x2 + 4x -1

    4x2 + 1

    4x2 - 1

    2x2 - 1

  • 3. Multiple Choice
    2 minutes
    1 pt

    Media geometrică a numerelor 2- √3 și 2 + √3 este:

    2

    4 - √3

    2√3

    1

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