document.write( "Question 1042383: How do I express this as a single logarithm?\r
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Algebra.Com's Answer #657342 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'm assuming these logs are all base 10.\r
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\n" ); document.write( "\n" ); document.write( "We'll use the following rules:\r
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\n" ); document.write( "\n" ); document.write( "Rule 1: \"log%28%28x%29%29%2Blog%28%28y%29%29+=+log%28%28x%2Ay%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Rule 2: \"log%28%28x%29%29-log%28%28y%29%29+=+log%28%28x%2Fy%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Rule 3: \"y%2Alog%28%28x%29%29+=+log%28%28x%5Ey%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Rule 4: \"log%28b%2C%28b%29%29+=+1\" where b is not equal to 1 and b > 0. In this case, I'm assuming the value of b is 10. \r
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\n" ); document.write( "\n" ); document.write( "\"log%28%285%29%29%2B2%2Alog%28%282%29%29%2Blog%28%283%29%29-log%28%286%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%285%29%29%2Blog%28%282%5E2%29%29%2Blog%28%283%29%29-log%28%286%29%29\" Use Rule 3\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%285%29%29%2Blog%28%284%29%29%2Blog%28%283%29%29-log%28%286%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%285%2A4%29%29%2Blog%28%283%29%29-log%28%286%29%29\" Use Rule 1\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%2820%29%29%2Blog%28%283%29%29-log%28%286%29%29\" \r
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\n" ); document.write( "\n" ); document.write( "\"log%28%2820%2A3%29%29-log%28%286%29%29\" Use Rule 1\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%2860%29%29-log%28%286%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%28%2860%29%2F%286%29%29%29\" Use Rule 2\r
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\n" ); document.write( "\n" ); document.write( "\"log%28%2810%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"1\" Use Rule 4\r
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\n" ); document.write( "\n" ); document.write( "So \"log%28%285%29%29%2B2%2Alog%28%282%29%29%2Blog%28%283%29%29-log%28%286%29%29\" simplifies to \"1\"\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"log%28%285%29%29%2B2%2Alog%28%282%29%29%2Blog%28%283%29%29-log%28%286%29%29=1\"
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