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5 * 8^4x = 376

 

x = 4 log 75.2/log 8

x = log 8/4 log 75.2

x = 4 log 8/log 75.2

x = log 75.2/4 log 8

Guest Nov 17, 2017
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 #1
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5 * 8^4x = 376

 

Divide both sides by 5

 

8^(4x)  =  376/5

 

Take the log of both sides

 

log 8^(4x)  =  log (376/5)   = log (72.5)    and we can write

 

(4x) log 8  =  log (72.5)     divide both sides by   4 log8

 

x =  log (72.5) / [ 4 log (8) ]

 

 

cool cool cool

CPhill  Nov 17, 2017

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