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#1 2011-07-25 22:14:38

diamond777
Member
Registered: 2011-07-19
Posts: 20

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 ....

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#2 2011-07-25 22:29:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,046

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 agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#3 2011-07-25 22:40:34

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,865

Re: Help!

Hi diamond777,

Welcome to the forum!


Character is who you are when no one is looking.

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