document.write( "Question 808874: Solve. (Check for undefined solutions at the end)
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document.write( "log(x-5)= 1- log(x-2)\r
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document.write( "Please & Thank You (: \n" );
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Algebra.Com's Answer #487263 by stanbon(75887) ![]() You can put this solution on YOUR website! Solve. (Check for undefined solutions at the end) \n" ); document.write( "log(x-5)= 1- log(x-2) \n" ); document.write( "------------------------ \n" ); document.write( "Rearrange:: \n" ); document.write( "log(x-5) + log(x-2) = 1 \n" ); document.write( "------ \n" ); document.write( "log[(x-5)(x-2)] = 1 \n" ); document.write( "-------- \n" ); document.write( "log[x^2-7x+10] = 1 \n" ); document.write( "----- \n" ); document.write( "x^2 -7x + 10 = 10 \n" ); document.write( "---- \n" ); document.write( "x^2-7x = 0 \n" ); document.write( "==== \n" ); document.write( "x(x-7) = 0 \n" ); document.write( "--- \n" ); document.write( "x = 0 or x = 7 \n" ); document.write( "----- \n" ); document.write( "x= 0 is extraneous \n" ); document.write( "---- \n" ); document.write( "Only solution:: x = 7 \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============== \n" ); document.write( " |