document.write( "Question 714846: What are the zeroes of 3x^2+5x-21 \n" ); document.write( "

Algebra.Com's Answer #439012 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( "The other tutor thought you were to list all the candidates for\r\n" );
document.write( "possible rational zeros, not find the actual zeroes.  Let's find \r\n" );
document.write( "the zeros, not just list the candidates for zeroes.\r\n" );
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document.write( "3x² + 5x - 21\r\n" );
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document.write( "Set that = 0\r\n" );
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document.write( "3x² + 5x - 21 = 0\r\n" );
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document.write( "It doesn't factor, so we will have to use the quadratic formula:\r\n" );
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document.write( "x = \r\n" );
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document.write( "where a = 3, b = 5, and c = -21 \r\n" );
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document.write( "x = \r\n" );
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document.write( "x = \r\n" );
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document.write( "x = \r\n" );
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document.write( "The two zeros are\r\n" );
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document.write( " and x = \r\n" );
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document.write( "Edwin

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