Find the set of values of x for which

thank you :)

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- May 31st 2008, 06:39 AMSilverHelp please?
Find the set of values of x for which

thank you :) - May 31st 2008, 06:57 AMrobocop_911
- May 31st 2008, 07:08 AMSilver
- May 31st 2008, 07:14 AMKrizalid
This has to be wrong. You can't multiply by or since we don't previously know what their signs are.

We first gonna have to make some algebra:

Now follow this and you'll get the answer.