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23 January, 13:12

Which is the result of the following equation

3x ^2-9=0

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Answers (2)
  1. 23 January, 14:16
    0
    3x^2 = - 9

    Send - 9 on the other side

    3x^2 = 9

    Divide by 3

    x^2 = 3

    x = + - / 3

    X = plus or minus square root 3
  2. 23 January, 14:43
    0
    3x^2-9=0

    Add 9 to both sides.

    3x^2=9

    Divide both sides of the equation by 3.

    x^2=3

    Take the square root of both sides.

    x=sqr of 3
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