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Mathematics 7 Online
OpenStudy (anonymous):

more logarithms

OpenStudy (anonymous):

\[\log_{2}(x-5)=2-\log_{2}(x-2)\]

hartnn (hartnn):

add log_2 (x-2) on both sides first

hartnn (hartnn):

so then you can use the log property on left \(\log A +\log B = \log AB\)

OpenStudy (anonymous):

would that give me \[\log_4(x^2-7)\] or \[\log_4(x-7)(x-5)\]

hartnn (hartnn):

\(\log_{2}(x-5)=2-\log_{2}(x-2) \\ \log_2 (x-5) + \log _2 (x-2) = 2 \\ \large \log_2[(x-5)(x-2)] = 2\) got this step ?

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