Posted by Ann on Tuesday, April 20, 2010 at 9:12pm.
12^x = (4)8^2x
ln it
ln(12^x) = ln((4)8^2x)
xln12 = ln4 + 2xln8
xln12 - 2xln8 = ln4
x(ln12 - 2ln8) = ln4
x = ln4/(ln12 - 2ln8)
= http://www.google.ca/search?hl=en&safe=off&q=ln+4%2F%28ln+12+-+2ln+8%29&meta=&aq=f&aqi=&aql=&oq=&gs_rfai=
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