document.write( "Question 690977: Solve. include approximations to the nearest thousandth.\r
\n" ); document.write( "\n" ); document.write( "ln(x-6)+ln(x+5)=ln42
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Algebra.Com's Answer #426454 by nerdybill(7384)\"\" \"About 
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\n" ); document.write( "ln(x-6)+ln(x+5)=ln42\r
\n" ); document.write( "\n" ); document.write( "ln[(x-6)(x+5)] = ln42
\n" ); document.write( "(x-6)(x+5) = 42
\n" ); document.write( "x^2+5x-6x-30 = 42
\n" ); document.write( "x^2-x-30 = 42
\n" ); document.write( "x^2-x-72 = 0
\n" ); document.write( "(x+8)(x-9) = 0
\n" ); document.write( "x = {-8, 9}
\n" ); document.write( "The negative solution is extraneous throw it out leaving:
\n" ); document.write( "x = 9
\n" ); document.write( "or, to the nearest thousandth:
\n" ); document.write( "x = 9.00
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