SOLUTION: 3log (base 2) (5x)= 12 X=???

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Question 37121: 3log (base 2) (5x)= 12
X=???
Found 2 solutions by AnlytcPhil, longjonsilver:
Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!


                            3·log2(5x) = 12

Divide both sides by 3

                              log2(5x) = 4

Use the fact that equation

    logBA = C 

is equivalent to the equation 

       A = BC

                                   5x = 24

                                   5x = 2·2·2·2

                                   5x = 16

                                    x = 16/5 

     
Edwin McCravy
AnlytcPhil@aol.com
Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!
ignoreing the words base2 for sake of clarity:




So, to reverse log-base2 we need to raise both sides as follows:




jon.
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