log to base 5

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- Dec 21st 2009, 07:53 PMmath321help needed logs problem
log to base 5

- Dec 21st 2009, 08:18 PMbigwave
If the bases are the same

the definition is

so

then

- Dec 21st 2009, 08:21 PMmath321
right now im just practicing for my exam

logx + log (x-21) = 2 - Dec 21st 2009, 11:52 PMGrandad
- Dec 22nd 2009, 04:20 AMskeeterQuote:

... be sure to check solutions in the original equation to avoid domain issues.