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11th grade

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Solve for x:9x^2-49=0

  • 11th grade - ,

    SIMPLE! add 49 to the other side-
    9x^2=49
    Now take the square root of 49. I'm in 10th grade, isnt this easy? maybe im doing it wrong?

  • 11th grade - ,

    9x^2=49
    3x=7
    x=7/3

  • 11th grade - ,

    stupid 10th grader

  • 11th grade - ,

    positive or negative 7/3
    stupid whoever u are

  • 11th grade - ,

    X equals minus seven over 3 or seven over three. We've been dealing with this in my school so I'm certain as death about it.

  • 11th grade - ,

    -+7/3

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