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Thread: Negative number in the denominator

  1. September 18th 2010, 05:16 AM #1
    klik11
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    Negative number in the denominator

    Is that right?

    \frac{3-x}{-10} = -\frac{3-x}{10}
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  2. September 18th 2010, 05:21 AM #2
    Plato
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    Yes.
    This is also correct.
    \dfrac{3-x}{-10}=\dfrac{x-3}{10}.

    Do you understand why?
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  3. September 18th 2010, 05:22 AM #3
    klik11
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    Yes. Thanks
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  4. September 18th 2010, 07:01 AM #4
    klik11
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    Another question.

    Is this right?
    (\dfrac{x-1}{2})^{2} = \dfrac{x-1}{2} * \dfrac{x-1}{2} = \dfrac{x^{2}-2x+1}{4}
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  5. September 18th 2010, 09:24 AM #5
    shannu82
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    Quote Originally Posted by klik11 View Post
    Another question.

    Is this right?
    (\dfrac{x-1}{2})^{2} = \dfrac{x-1}{2} * \dfrac{x-1}{2} = \dfrac{x^{2}-2x+1}{4}
    Yes that is correct.
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