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#1 2011-07-26 20:14:38

diamond777
Member

Offline

Help!

seventy years young student of maths is fun
In need of lots of help!
lets start with:
algebra - working with exponents and logarithms-
question five
solve (for x)
2log3(x)=5
answer D x = 9square root(3)
i presume the 2 means that x is squared in the question?
please explain what 9square root of (3) is and how it is the square root of 243?
thank you ....

 

#2 2011-07-26 20:29:13

bobbym
Administrator

Online

Re: Help!

Hi diamond777;

seventy years young student of maths is fun
In need of lots of help!



Divide both sides by 2



3^x both sides.







Welcome to the forum, young man.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#3 2011-07-26 20:40:34

ganesh
Moderator

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Re: Help!

Hi diamond777,

Welcome to the forum!


Character is who you are when no one is looking.
 

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