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February 28, 2015

February 28, 2015

Posted by **faylinn** on Tuesday, July 24, 2012 at 10:32am.

- college algebra -
**Reiny**, Tuesday, July 24, 2012 at 11:47amlog x^2 - log9 = log 441

log (x^2 /9) = log 441

"antilog" it

x^2/9 = 441

x^2 = 3969

x = ±63 , but we cannot take log of a negative, so

x = 63

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