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Mathematics 15 Online
OpenStudy (anonymous):

Help me Solve another Logarithmic Equation Please

OpenStudy (anonymous):

OpenStudy (solomonzelman):

\(\large\color{black}{ \log_{_{\LARGE1/5}}~(x^2+x)-\log_{_{\LARGE1/5}}~(x^2-x) =-1 }\)

OpenStudy (solomonzelman):

this is what I would do (first thing that comes up) use the rule, \(\large\color{black}{ \log_{_{\LARGE a}}~(A)-\log_{_{\LARGE a}}~(B) =\log_{_{\LARGE a}}~(\frac{A}{B}) }\)

OpenStudy (solomonzelman):

then when you write it as a single logarithm, re-write the -1 in terms of a log base 1/5.

OpenStudy (anonymous):

\[\log_{1/5} = x^2+x/x^2-x (-1) ?\]

OpenStudy (solomonzelman):

at first, when we write this as a single logarithm, using the aforementioned rule, |dw:1417564900448:dw|

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