document.write( "Question 132616: Solve for x:
\n" ); document.write( "2logbase4(2x)-logbase4(3x-5)=logbase3 (9)???
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Algebra.Com's Answer #96963 by mathispowerful(115)\"\" \"About 
You can put this solution on YOUR website!
\"2log4%282x%29-log4%283x-5%29=log3%289%29\"\r
\n" ); document.write( "\n" ); document.write( "Solution:\r
\n" ); document.write( "\n" ); document.write( "Rewrite the equation:\r
\n" ); document.write( "\n" ); document.write( "\"log4%282x%29%5E2-log4%283x-5%29=log3%283%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"log4%28%282x%29%5E2%2F%283x-5%29%29=2log3%283%29\"\r
\n" ); document.write( "\n" ); document.write( "\"log4%28%282x%29%5E2%2F%283x-5%29%29=2\"\r
\n" ); document.write( "\n" ); document.write( "Replace 2 by \"log4%2816%29\" since they are equal and we need base 4 log.\r
\n" ); document.write( "\n" ); document.write( "So we get\r
\n" ); document.write( "\n" ); document.write( "\"log4%28%282x%29%5E2%2F%283x-5%29%29=log4%2816%29\"\r
\n" ); document.write( "\n" ); document.write( "Compare the two sides, we get\r
\n" ); document.write( "\n" ); document.write( "\"%282x%29%5E2%2F%283x-5%29=16\"\r
\n" ); document.write( "\n" ); document.write( "Then multiply 3x-5 on both sides:\r
\n" ); document.write( "\n" ); document.write( "\"%282x%29%5E2=16%283x-5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4x%5E2=16%283x-5%29\"\r
\n" ); document.write( "\n" ); document.write( "divide by 4 on both sides:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2=4%283x-5%29\"\r
\n" ); document.write( "\n" ); document.write( "expand it and write into standard form:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-12x%2B20=0\"\r
\n" ); document.write( "\n" ); document.write( "Factor left side:\r
\n" ); document.write( "\n" ); document.write( "(x-10)(x-2)=0;\r
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\n" ); document.write( "\n" ); document.write( "So x=10 or x=2.\r
\n" ); document.write( "\n" ); document.write( "That's it!
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