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View Full Version : Find the missing base: LOGb(8)=5


bd1177
Apr 25, 2012, 01:13 PM
Hi, could you help me with this algebra problem please. Thank you

ebaines
Apr 25, 2012, 01:33 PM
If this is what you mean:


\log_b 5 = 8


You can apply the definition of logarithms, which is that if \log _a b = c then b^c = a. So from \log_b 8 = 5 you have b^5 = 8. Can you take it from here?