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Math Help - Solve equation (link provided)

  1. #1
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    Solve equation (link provided)

    http://i43.tinypic.com/34rhbpl.png
    I've tried to solve it, but here's my answer, not sure if it's right. . .[-infinite,1) U (4, infinite )..
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  2. #2
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    Re: Solve equation (link provided)

    \frac{x+1}{x-4} \ge 0

    see the video ...

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  3. #3
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    Re: Solve equation (link provided)

    The answer is (-infinite, -1) U [4, infinite) ?
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    Re: Solve equation (link provided)

    Quote Originally Posted by HellBunny View Post
    The answer is (-infinite, -1) U [4, infinite) ?
    almost ...

    (-\infty,-1] \cup (4,\infty)
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  5. #5
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    Re: Solve equation (link provided)


    Plugged 2, 5, and 8. 2=False, 5 = True, 8 = False.
    Answer:
    Code:
    [3,7)
    correct?
    Last edited by HellBunny; April 26th 2012 at 05:43 AM.
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  6. #6
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    Re: Solve equation (link provided)

    Correct interval but have to indicate that 3 is included but not 7
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  7. #7
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    Re: Solve equation (link provided)

    Ah, thanks. Hey, another question.. how do I solve this? 125^{2}{3} the 2/3 is an exponent.
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  8. #8
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    Re: Solve equation (link provided)

    Quote Originally Posted by HellBunny View Post
    Ah, thanks. Hey, another question.. how do I solve this? 125^{2}{3} the 2/3 is an exponent.
    \displaystyle \begin{align*} 125^{\frac{2}{3}} &= \left(125^{\frac{1}{3}}\right)^2 \\ &= \left(\sqrt[3]{125}\right)^2 \\ &= 5^2 \\ &= 25 \end{align*}
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