SOLUTION: Need help please! I am failing this class and just can't seem to grasp it.. Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, stat

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Question 328048: Need help please! I am failing this class and just can't seem to grasp it..
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.
log9x = -3
9 is base( i believe)

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
You have to be able to read this. First you must
know that **logs are exponents**.
If you have , then is a log to the base
says the log to the base which gives
me is .
You know is the exponent because
log(something) =
If is the exponent, and is the base, I can write

Now you have to know what to do with a negative exponent
The rule is:
, so
, and


So far, I have
, so

Remember, also, that there is no way you could have
something like

This is saying
There is no possible that can give you a minus result
Good luck - just pound away at this stuff- It's like
cement- It will crumble after a while

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