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Math Help - evaluate stuck at last bit

  1. #1
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    evaluate stuck at last bit


    if someone could please explain to me if im doing this wrong or what morei have to do to make it right
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  2. #2
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    -3 - \sqrt{1} = -3 - 1 = -4
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    Quote Originally Posted by skeeter View Post
    -3 - \sqrt{1} = -3 - 1 = -4

    the answer in the back says

    3 - root 1

    = 2
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  4. #4
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    Quote Originally Posted by realistic View Post
    the answer in the back says

    3 - root 1

    = 2
    sorry ... I just noted your last step.

    -b - \sqrt{b^2-4ac}

    -(-3) - \sqrt{1} = 3 - 1 = 2
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    Quote Originally Posted by skeeter View Post
    sorry ... I just noted your last step.

    -b - \sqrt{b^2-4ac}

    -(-3) - \sqrt{1} = 3 - 1 = 2

    ah i see what i did wrong forgot that extra negative thanks for clearing that up for me
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  6. #6
    Senior Member pacman's Avatar
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    life is like that . . . . simple mistake that stucks us up.
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