Ok well we see that from the bottom so now let's solve for x

So we get

(Remember that square roots always have 2 roots)

Now we can see if it satisfies the numerator.

and of course

So we found that

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- October 10th 2007, 04:53 PM #1

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- October 11th 2007, 05:24 AM #3

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- October 11th 2007, 08:51 PM #6