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Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: High school
Topic ID: 163
Message ID: 5
#5, RE: solving exponential equations
Posted by alexb on Jan-25-04 at 07:21 PM
In response to message #4
>x^2=2^x
>2log(x)=xlog(2) take the log of both sides
>log(x)/x= log(2)/2
>x=2

What about x = 4?