document.write( "Question 538112: Hello
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document.write( "I am trying to figure out how to solve quadratic equations. I have X2-8x-9=0 \n" );
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Algebra.Com's Answer #353113 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! x^2 -8x -9 = 0 \n" ); document.write( ". \n" ); document.write( "So, to factor it you need to find two powers of 9 that have a difference of 1. \n" ); document.write( "-8 = -9+1 \n" ); document.write( ". \n" ); document.write( "(x-9)(x+1) = x^2 -8x -9 \n" ); document.write( ". \n" ); document.write( "That means x = 9 or -1. \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Done. \n" ); document.write( " |