document.write( "Question 688137: 1- Solve the equation log3 (4x - 9) = 3 - log3 (8x-3)
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document.write( "2) Solve the equation e^(2x+1) - 8e^(x+1) = 9e \n" );
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Algebra.Com's Answer #425545 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1- Solve the equation log3 (4x - 9) = 3 - log3 (8x-3) \n" ); document.write( "---- \n" ); document.write( "log3(4x-9) + log3(8x-3) = 3 \n" ); document.write( "---- \n" ); document.write( "log[(4x-9)(8x-3)] = 3 \n" ); document.write( "----- \n" ); document.write( "log[32x^2 -12x -72x + 27] = 3 \n" ); document.write( "---- \n" ); document.write( "32x^2 -84x + 27 = 10^3 \n" ); document.write( "---- \n" ); document.write( "32x^2 - 84x - 973 = 0 \n" ); document.write( "----- \n" ); document.write( "Positive solution: \n" ); document.write( "x = 6.9807.. \n" ); document.write( "=======================\r \n" ); document.write( "\n" ); document.write( "2) Solve the equation e^(2x+1) - 8e^(x+1) = 9e \n" ); document.write( "You could graph the left side and the right side \n" ); document.write( "and see where they intersect. \n" ); document.write( "I'll leave that to you. \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |