document.write( "Question 973207: How do you solve 12^2x-8=15 \n" ); document.write( "
Algebra.Com's Answer #595429 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
if you have\r
\n" ); document.write( "\n" ); document.write( "\"12%5E%282x%29-8=15\" then\r
\n" ); document.write( "\n" ); document.write( "\"12%5E%282x%29=15%2B8\"....use log base ten\r
\n" ); document.write( "\n" ); document.write( "\"log%2812%5E%282x%29%29=log%2823%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%282x%29log%2812%29=log%2823%29\"\r
\n" ); document.write( "\n" ); document.write( "\"2x=log%2823%29%2Flog%2812%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28log%2823%29%2Flog%2812%29%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28log%2823%29%2F2log%2812%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28log%2823%29%2F2log%282%5E2%2A3%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=x+=+log%2823%29%2F%282%282log%282%29%2Blog%283%29%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=0.6309\" => approximately\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "but, if you have\r
\n" ); document.write( "\n" ); document.write( "\"12%5E%282x-8%29=15\" then\r
\n" ); document.write( "\n" ); document.write( "\"log%2812%5E%282x-8%29%29=log%2815%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%282x-8%29log%2812%29=log%2815%29\"\r
\n" ); document.write( "\n" ); document.write( "\"2x-8=log%2815%29%2Flog%2812%29\"\r
\n" ); document.write( "\n" ); document.write( "\"2x-8=log%283%2A5%29%2Flog%283%2A2%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"2x-8=%28log%283%29%2Blog%285%29%29%2F%28log%283%29%2B2log2%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"2x=%28log%283%29%2Blog%285%29%29%2F%28log%283%29%2B2log2%29%29%2B8\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28log%283%29%2Blog%285%29%29%2F%28log%283%29%2B2log2%29%29%2F2%2B8%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28log%283%29%2Blog%285%29%29%2F%282%28log%283%29%2B2log2%29%29%29%2B4\"\r
\n" ); document.write( "\n" ); document.write( "approximately \"x=4.5449\"\r
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