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anonymous
 5 years ago
i need help solving logarithmic equations
anonymous
 5 years ago
i need help solving logarithmic equations

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\log_{5} 4\log_{5} 3r=3\log_{5} 2\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you want to find r? ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but i need step by step help so i can understand it.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Alright, here we go :) :\[\log_{5}3r = \log_{5}2^3  \log_{5}4 \]\[\log_{5}3r = \log_{5}2^3 +\log_{5}4 \]\[\log_{5}3r = \log_{5}(8.4) \]\[\log_{5}3r = \log_{5}32 \]\[\log_{5}3r = 2.15 \rightarrow 3r = 5^{2.15} \rightarrow r = \frac{5^{2.15}}{3} \approx10.6 \] correct me if I'm wrong please ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm not sure if it's right or wrong. that's my problem. i have no knowledge on this at all.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hmm , alright the basic rules : \[\log_{b}n + \log_{b}k = \log_{b}(n + k) \] \[ \log_{b}n \log_{b}k = \log_{b}(\frac{n}{k})\] I think I've done a silly mistake lol , hold on :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Use the properties of logerithms: \[\log _{5}4\log _{5}3r=\log _{5}[4/(3r)]\] Also \[3\log _{5}2=3\log _{5}2^3=3\log _{5}8\] \[\log _{5} [4/(3r)]=\log _{5}8\] 4/3r=8 So r=1/6

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0=// after the Also ignore the 3s after the equal signs

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0this step :\[\log_{5} 3r = \log_{5}4  \log_{5} 8\] must be : \[\log_{5}3r = \log_{5} \frac{4}{8}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you can take it up from here, right? :) I think xav's answer is correct since I did a silly mistake lol, sorry ^_^"

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright , so xav's + iam's answer = correct dear ^_^, did you understand the concept now?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright , so xav's + iam's answer = correct dear ^_^, did you understand the concept now?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, you can verify if the answer is correct or not by going here http://www.wolframalpha.com/input/?i=log5%284%29%E2%88%92log5%283r%29%3D3log5%282%29

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes i did. I have plenty more problems i need help with. Can anyone be patient with me and help me through all of them ? :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what are your problems?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What are your problems?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\log_{2} 4\log_{2} (x+3)\log_{2} 8\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What do you want to do with this

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No. all the problems i'm posting are solving each equation.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh wait i see what you saying the = is supposed to be after (x+3)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Where 2 is at the base

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0But that leads to no solution

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\log_{2} 4\log_{2} 8=\log_{2} (x+3)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0We can write (4/8)=x+3
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