How can I express logbx-(logby+logbz) as a single log?
When you subtract logarithmic expressions, you may divide their interior under one log. Contrarily, when you add logarithmic expressions, you may multiply their interior under one log. For example: \[\log _{b} y+\log _{b} z = \log _{b} yz\]\[\log _{b} x-\log _{b} y = \log _{b}\frac{ x }{ y }\]Use these properties for your expression @kat50036
but where is the Z?
I merely showed you the properties. I was asking you to apply it to your expression so that you get a better understanding of the concept. Where should the z be? @kat50036
\[\log_{b}x - (\log_{b}y + \log_{b}z)\]
I thought it should maybe read logb x/yz?
That's exactly right. Nice job.
It is??? Thank you so much. Can I ask another one? About expanding?
Sure go ahead and post it up. Don't forget to close this thread ^_^
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