Algebra.Com's Answer #773031 by ikleyn(52778)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "Do you know the quadratic formula ?\r\n" );
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document.write( "It has the form r,s =  ,\r\n" );
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document.write( "where b is the coefficient at \"k\" and \"a\" is the coefficient at \"k^2\" in the standard form equation.\r\n" );
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document.write( "When you subtract r-s, you will get this \"something\", divided by \"a\".\r\n" );
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document.write( "Now, the standard form of the equation is\r\n" );
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document.write( " 3k^2 + 14k - 5 = 0.\r\n" );
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document.write( "The \"something\" is the square root of the discriminant  =  =  = 16.\r\n" );
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document.write( "The \"a\" is 3.\r\n" );
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document.write( "Therefore, the answer is  .\r\n" );
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document.write( "ANSWER. The difference r - s = .\r\n" );
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document.write( "Solved.\r
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document.write( "---------------\r
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document.write( "On quadratic formula, see the lessons\r
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document.write( " - Introduction into Quadratic Equations\r
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document.write( " - PROOF of quadratic formula by completing the square\r
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document.write( "in this site.\r
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