document.write( "Question 467456: I am having trouble. I am in college algebra and we are having to simplify rational expressions. The equation I have is a fraction:\r
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document.write( "5/(a-3)-2/(a^2-9) I do not know how to get to the answer. I have to show my work, but I don't know what steps to take and my book is so confusing. I don't want to cheat, I just genuinely want to understand, but am stuck. Please help!!! \n" );
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Algebra.Com's Answer #320749 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 5/(a-3)-2/(a^2-9) \n" ); document.write( "---- \n" ); document.write( "Factor: \n" ); document.write( "[5/(a-3)] - [2/(a-3)(a+3)] \n" ); document.write( "---- \n" ); document.write( "Least common denominator: (a-3)(a+3) \n" ); document.write( "---- \n" ); document.write( "Rewrite each fraction with the lcd as its denominator: \n" ); document.write( "--- \n" ); document.write( "= [5(a+3)/lcd] - [2/lcd] \n" ); document.write( "----- \n" ); document.write( "Combine the numerators over the common denominator: \n" ); document.write( "= [5a+15-2]/lcd \n" ); document.write( "----------------------- \n" ); document.write( "simplify: \n" ); document.write( "--- \n" ); document.write( "= [5a+13]/[(a-3)(a+3)] \n" ); document.write( "================================== \n" ); document.write( "cheers, \n" ); document.write( "stan H. \n" ); document.write( "========== \n" ); document.write( " |