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## Homework Statement

I need to find a positive REAL value x such that

[tex]

\frac{2-(4+x^2-x\sqrt (4+x^2) \sqrt (\frac{2+x^2+x\sqrt 4+x^2 }{8+2x^2})}{4\sqrt (4+x^2) } == 0

[/tex]

x cannot be complex or zero! So far, I don't even think its possible.

Any suggestions?

## Homework Equations

## The Attempt at a Solution

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