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smurfy14
 5 years ago
how do you do 2^(3x4)=5 ?? *its a logrithim*
smurfy14
 5 years ago
how do you do 2^(3x4)=5 ?? *its a logrithim*

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use: \[\ln (2^{(3x4)})= \ln5\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Take the logarithm of both sides, and the exponent (3x4) becomes a coefficient because of logarithm rules.\[(3x4) \log(2) = \log(5)\] \[\rightarrow 3x4 = \log(5)/\log(2) \rightarrow x=\log(5)/(3\log(2))+4/3\]

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0after the second arrow..how did you get x = log(5)/(3log(2))+4/3? did you divide by three or something?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah, I skipped a step, sorry. xD I just divided each term by 3.

smurfy14
 5 years ago
Best ResponseYou've already chosen the best response.0so the answer should be x=4.774 right?
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