SOLUTION: please explain how to do this too.. i need these 3 that i cant figue out:) thanks Evaluate each logarithm. http://i732.photobucket.com/albums/ww330/school_hard/IMG

SOLUTION: please explain how to do this too.. i need these 3 that i cant figue out:) thanks Evaluate each logarithm. http://i732.photobucket.com/albums/ww330/school_hard/IMG_51361

Question 183555: please explain how to do this too.. i need these 3 that i cant figue out:)
thanks
Evaluate each logarithm.

http://i732.photobucket.com/albums/ww330/school_hard/IMG_51361.jpg
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'll do the first two to get you started

# 1

Start with the given logarithm

Rewrite 32 as . The key here is we want the base to be 2

Use the identity to rewrite the expression.

Evaluate the log base 2 of 2 to get 1

Multiply

So

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# 2
Start with the given logarithm

Set "y" equal to the given logarithm

Convert to exponential form.

Now remember, any positive number raised to a variable power will ALWAYS be positive (ie where "a" is a constant).

So is ALWAYS positive. So is NOT true for any "y" value.

So there are no solutions

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