Properties of Logarithms, Division and Multiplication

AI Thread Summary
The discussion focuses on expressing the logarithmic expression loga(x8w/y2z4) in terms of logarithms of x, y, z, or w. Participants reference key logarithmic properties, specifically the quotient and product rules. An initial attempt at solving the problem reveals a common mistake of not properly handling exponents. The realization of this error leads to a corrected approach in the solution process. The conversation emphasizes the importance of accurately applying logarithmic properties when simplifying expressions.
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Homework Statement


Express in terms of logarithms x, y, z or w.

Problem:

loga(x8w/y2z4)


Homework Equations



log(u/w) = log u - log w
log(uw) = log u + log w

The Attempt at a Solution



Here are my attempts:

owyu2.png


As you can see, the answers are pretty similar. I'm assuming I made a small syntactical mistake.
 
Last edited:
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Nevermind... realized that I didn't bring the exponents out front.
 
I tried to combine those 2 formulas but it didn't work. I tried using another case where there are 2 red balls and 2 blue balls only so when combining the formula I got ##\frac{(4-1)!}{2!2!}=\frac{3}{2}## which does not make sense. Is there any formula to calculate cyclic permutation of identical objects or I have to do it by listing all the possibilities? Thanks
Since ##px^9+q## is the factor, then ##x^9=\frac{-q}{p}## will be one of the roots. Let ##f(x)=27x^{18}+bx^9+70##, then: $$27\left(\frac{-q}{p}\right)^2+b\left(\frac{-q}{p}\right)+70=0$$ $$b=27 \frac{q}{p}+70 \frac{p}{q}$$ $$b=\frac{27q^2+70p^2}{pq}$$ From this expression, it looks like there is no greatest value of ##b## because increasing the value of ##p## and ##q## will also increase the value of ##b##. How to find the greatest value of ##b##? Thanks
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