document.write( "Question 942774: Will someone solve and explain this question:\r
\n" ); document.write( "\n" ); document.write( "Q: Find x, correct to 3 significant figures, in the following:\r
\n" ); document.write( "\n" ); document.write( " 3^x . 10^2x = 4 . 20^x-2
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Algebra.Com's Answer #574795 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"3%5Ex%2A10%5E%282x+%29=+4%2A+20%5E%28x-2%29\"....use logarithm\r
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\n" ); document.write( "\n" ); document.write( "\"log%283%5Ex%2A10%5E%282x+%29%29=+log%284%2A+20%5E%28x-2%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%283%5Ex%29%2Blog%2810%5E%282x+%29%29=+log%284%29%2Blog%28+20%5E%28x-2%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%283%5Ex%29%2Blog%2810%5E%282x+%29%29=+log%284%29%2Blog%28+20%5Ex%2F20%5E2%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"log%283%5Ex%29%2Blog%2810%5E%282x+%29%29=+log%284%29%2Blog%28+20%5Ex%29-log%2820%5E2%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%2Alog%283%29%2Bx%2Alog%285%29=+-2log%282%29-2log%285%29\" \r
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\n" ); document.write( "\n" ); document.write( "\"x%28log%283%29%2Blog%285%29%29=-2%28log%285%29+%2Blog%282%29%29\" \r
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\n" ); document.write( "\n" ); document.write( "\"x=-2%28log%285%29+%2Blog%282%29%29+%2F%28log%283%29%2Blog%285%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-2%280.69897%2B0.301%29%2F%280.477%2B0.69897%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-2%280.99997%29%2F%281.17597%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-1.99994%2F1.17597\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-1.700672636206706\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-1.701\"\r
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\n" ); document.write( "\n" ); document.write( "if you check it, you get\r
\n" ); document.write( "\n" ); document.write( "\"0.0000612277=0.0000612277\" \r
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