Mathematics

7th

grade

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algebra

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20 questions

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  • 1. Multiple Choice
    3 minutes
    1 pt
    El resultado de multiplicar (3x-2)(3x+2) es:
    9x2 - 4
    9x2-12x+4
    9x2+4
    9x2+12x-4
  • 2. Multiple Choice
    3 minutes
    1 pt
    Opera:
    (x2+5x-2)(4x+3) =
    4x3+23x2+7x-6
    4x3+3x2+7x-6
    x3+23x2+7x-6
  • 3. Multiple Choice
    5 minutes
    1 pt

    Opera y reduce:

    3x(2x2-4x+2)-(5x2 -7x -8)=

    x2 - 19x - 2x

    6x3 -17x2 + 13x + 8

    6x3 + 7x2 - 13x + 8

    5x3 - 19x2 - x - 8

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