document.write( "Question 446445: Solve the logarithmic equation for x. (Round your answer to four decimal places.)
\n" ); document.write( "ln(x − 6) + ln(x + 7) = 1 \n" ); document.write( "
Algebra.Com's Answer #307575 by ankor@dixie-net.com(22740)\"\" \"About 
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Solve the logarithmic equation for x. (Round your answer to four decimal places.)
\n" ); document.write( "ln(x - 6) + ln(x + 7) = 1
\n" ); document.write( ":
\n" ); document.write( "Adding logs is multiply
\n" ); document.write( "ln((x-6)*(x+7)) = 1
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\n" ); document.write( "FOIL
\n" ); document.write( "ln(x^2 + 7x - 6x - 42) = 1
\n" ); document.write( "ln(x^2 + x - 42) = 1)
\n" ); document.write( "exponent equiv
\n" ); document.write( "x^2 + x - 42 = e^1
\n" ); document.write( "which is
\n" ); document.write( "x^2 + x - 42 = 2.71828
\n" ); document.write( "x^2 + x - 42 - 2.71828 = 0
\n" ); document.write( "x^2 + x - 44.71828 = 0
\n" ); document.write( "use the quadratic formula is find x
\n" ); document.write( " x = -7.2058
\n" ); document.write( " x = 6.2058; only the positive solution can be used here\r
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