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Math Help - Value of gx

  1. #1
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    Value of gx

    for about what value(s) of x does g(x) = k(x) if g(x) = 2x^2 - 8 and k(x) =
    -x^2 - 2
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  2. #2
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    Quote Originally Posted by tricey36 View Post
    for about what value(s) of x does g(x) = k(x) if g(x) = 2x^2 - 8 and k(x) =
    -x^2 - 2
    Solve for it like so:

    g(x)=k(x)

    2x^2 - 8 = -x^2 - 2

    3x^2 - 6 = 0

    3x^2 = 6

    x^2 = 2

    x = \pm \sqrt{2}
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