Negative number in the denominator

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September 18th 2010, 05:16 AM
klik11

Negative number in the denominator

Is that right?

$\frac{3-x}{-10} = -\frac{3-x}{10}$
September 18th 2010, 05:21 AM
Plato

Yes.
This is also correct.
$\dfrac{3-x}{-10}=\dfrac{x-3}{10}$ .

Do you understand why?
September 18th 2010, 05:22 AM
klik11

Yes. Thanks :)
September 18th 2010, 07:01 AM
klik11

Another question.

Is this right?
$(\dfrac{x-1}{2})^{2} = \dfrac{x-1}{2} * \dfrac{x-1}{2} = \dfrac{x^{2}-2x+1}{4}$
September 18th 2010, 09:24 AM
shannu82

Quote:

Originally Posted by klik11

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.(Nod)

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