document.write( "Question 62960: Solve ln(2x-1)-ln(4)=ln(x-2) \n" ); document.write( "
Algebra.Com's Answer #43796 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve ln(2x-1)-ln(4)=ln(x-2) \n" ); document.write( "ln(2x-1)=ln[4/(x-2)] \n" ); document.write( "2x-1 = 4/(x-2) \n" ); document.write( "2x^2-4x-x+2=-4 \n" ); document.write( "2x^2-5x+6=0 \n" ); document.write( "x=[5+-sqrt(25-4(2)(6))]/4 \n" ); document.write( "x=[5+-1]/4 \n" ); document.write( "x=3/2 or x=1 \n" ); document.write( "Both solution are extraneous: \n" ); document.write( "If x=3/2, ln(x-2)=ln(-1/2) which does not exist. \n" ); document.write( "If x=1, ln(x-2)=ln(-1) which does not exist. \n" ); document.write( "Conclusion: No solution \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |