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1. I'm sure it's fairly easy to do this, but my book didn't explain how to do it and then i got asked the question. SO can somebody please solve this for me and show me the steps on how to do it please.

Here it is: "Write the following expression in the form log x where x is a number." and then some example questions would be a) log 5 + log 2 or b) log 6 - log 3 or c) 2 log 6 and d) -log 7
2. (Original post by gavinfourie)
I'm sure it's fairly easy to do this, but my book didn't explain how to do it and then i got asked the question. SO can somebody please solve this for me and show me the steps on how to do it please.

Here it is: "Write the following expression in the form log x where x is a number." and then some example questions would be a) log 5 + log 2 or b) log 6 - log 3 or c) 2 log 6 and d) -log 7
The three main rules for logarithms you need to know are:
Log(a) +log (b) = log (ab)
Log (a) - log (b) = log (a/b)
(And this works for any Base as long as they're the same)

Log (a^n) =nlog (a)
3. (Original post by NotNotBatman)
The three main rules for logarithms you need to know are:
Log(a) +log (b) = log (ab)
Log (a) - log (b) = log (a/b)
(And this works for any Base as long as they're the same)

Log (a^n) =nlog (a)
Thanks! Don't know why the textbook couldn't have just told me that. So simple really. Anyways, this has actually helped me alot so thank you very much!

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