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Math Help - Quadratic Equations

  1. #1
    Junior Member
    Joined
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    Quadratic Equations

    I just want to make sure that I am on the right track.

    Solve.
    19-x^2=0

    This is what I did.

    x^2-19=0

    squared both of them.

    x=the square root of 19

    x=square root of 4.35

    sorry i don't know how to make the square root on my computer.

    but is this correct?
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
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    Quote Originally Posted by getnaphd View Post
    I just want to make sure that I am on the right track.

    Solve.
    19-x^2=0

    This is what I did.

    x^2-19=0

    squared both of them.

    x=the square root of 19

    x=square root of 4.35

    sorry i don't know how to make the square root on my computer.

    but is this correct?
    it's not the square root of 4.35, you already took the square root of the 19

    leave the answer in terms of a radical, say x = \pm \sqrt {19}
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