SOLUTION: Solve the equation {{{log(16,(x))+log(8,(x))+log(4,(x))+log(2,(x))=6}}}
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Question 143992: Solve the equation
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation
Use the change of base formula to rewrite each individual log. Remeber the change of base formula is
Rewrite 16 as . Rewrite 8 as . Rewrite 4 as
Rewrite the each denominator using the identity
Multiply both sides by the LCD . Doing this will eliminate the denominators.
Distribute and multiply
Factor out the GCF
Add
Rearrange the terms
Rewrite the expressions using the identity
Since the logs have the same base, this means that the argument (the terms inside the log) are equal.
Take the 50th root of both sides
So our answer is which is approximately
note: can be written as =
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