# I am so tired of Logs

• Oct 11th 2012, 05:43 PM
M670
I am so tired of Logs
Been trying so hard
Solve for http://webwork.mathstat.concordia.ca...dd0b8b8e91.png :http://webwork.mathstat.concordia.ca...e051ab8341.png
so I come up with
log3x+log3(x+3) I combine them into log3(x^2+3x)-log36=0
then I tired to make it into a quadratic formula to solve it that way but didn't work.
Do I need to change it into exponent form to solve?
• Oct 11th 2012, 05:55 PM
Plato
Re: I am so tired of Logs
Quote:

Originally Posted by M670
http://webwork.mathstat.concordia.ca...dd0b8b8e91.png :http://webwork.mathstat.concordia.ca...e051ab8341.png
so I come up with
log3x+log3(x+3) I combine them into log3(x^2+3x)-log36=0
then I tired to make it into a quadratic formula to solve it that way but didn't work.
Do I need to change it into exponent form to solve?

That becomes $x(x+3)=6$
• Oct 11th 2012, 06:16 PM
M670
Re: I am so tired of Logs
Quote:

Originally Posted by Plato
That becomes $x(x+3)=6$

Yes X= 1.372