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May 23rd, 2012, 05:49 PM   #1
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simplify expression

hi,

im having trouble with a fairly basic simplifying expression.

The question is:

Simplify the expression



where is negative.

ive worked through this problem a few times and came up with





there graphs look completely different which leads me to think theyre incorrect


which doesnt look right to me and i thought simplifying radicals was meant to remove them from the bottom

this question is driving me insane and any help would be great
thanks
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May 23rd, 2012, 05:56 PM   #2
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Re: simplify expression









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May 23rd, 2012, 06:06 PM   #3
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Re: simplify expression

how careless of me
thank you
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