Mathematics

X squared = k and the null factor

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  • 1. Fill-in-the-Blank
    2 minutes
    1 pt

    Solve this equation, giving the positive solution

     x2=81x^2=81  

  • 2. Fill-in-the-Blank
    2 minutes
    1 pt

    Solve this equation, for the positive solution

     2x2=1282x^2=128  

  • 3. Multiple-choice
    2 minutes
    1 pt

    What are the solutions to this equation

     3x2=8673x^2=867  

     ±9\pm9  

     ±13\pm13  

     ±17\pm17  

     ±21\pm21  

     ±3π\pm3\pi  

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