Hello I have an exam tomorrow and dont understand how to do this question on logs

Simplify

could you please tell me how to do this step by step?

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- December 13th 2009, 11:48 AM #1

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- Sep 2009
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- December 13th 2009, 11:54 AM #2

- December 13th 2009, 12:30 PM #3

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- Sep 2009
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