document.write( "Question 431446: log[4]x + log[4](x+1)=log[4]6
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document.write( "Solve the logarithmic equation.\r
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document.write( "(To ensure my problem makes sense, the 4's are supposed to be \"subscripts\" of the log, I just didn't know how to type it other than this. Thank you for your help! Please respond as quickly as possible. \n" );
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Algebra.Com's Answer #299414 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! apply log rules: \n" ); document.write( "log[4]x + log[4](x+1)=log[4]6 \n" ); document.write( "log[4](x(x+1))=log[4]6 \n" ); document.write( "x(x+1)=6 \n" ); document.write( "x^2+x = 6 \n" ); document.write( "x^2+x-6 =0 \n" ); document.write( "factoring the left: \n" ); document.write( "(x+3)(x-2) = 0 \n" ); document.write( "x = {-3, 2} \n" ); document.write( "we can throw out the -3 (extraneous solution) leaving: \n" ); document.write( "x = 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |