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asnaseerBest ResponseYou've already chosen the best response.2
if:\[\log_bA=\log_bB\implies A=B\]
 one year ago

GOODMANBest ResponseYou've already chosen the best response.0
So all I need to do is set them equal to eachother? Sorry, I kinda forgot all this, and studying again.
 one year ago

asnaseerBest ResponseYou've already chosen the best response.2
yes, so assuming your question is:\[\log_5(8r7)=\log_5(r^2+5)\]then you would have:\[8r7=r^2+5\]solve this for r.
 one year ago

GOODMANBest ResponseYou've already chosen the best response.0
Okay, but if i were to have something like: log_9(x+4)+log_9(x4)=1
 one year ago

asnaseerBest ResponseYou've already chosen the best response.2
then you would use the rule:\[\log_bA+\log_bB=\log_b(A*B)\]
 one year ago

GOODMANBest ResponseYou've already chosen the best response.0
Ohhhh, okay, these rules are making its simple, are there any other important so I can study them? If you dont mind posting..
 one year ago

asnaseerBest ResponseYou've already chosen the best response.2
See this: http://www.purplemath.com/modules/logrules.htm
 one year ago

GOODMANBest ResponseYou've already chosen the best response.0
Perfect, thanks soo much!!
 one year ago
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