document.write( "Question 277983: factor trinomials 4x^2+9x+10= \n" ); document.write( "

Algebra.Com's Answer #202332 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "Multiply the 4 by the 10, getting 40\r\n" );
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document.write( "Write down all the products of two integers which gives +40\r\n" );
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document.write( "40*1\r\n" );
document.write( "20*2\r\n" );
document.write( "10*4\r\n" );
document.write( " 8*5\r\n" );
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document.write( "Now out beside all those write their sum, \r\n" );
document.write( "since +40 is positive. (If it had been negative\r\n" );
document.write( "we would have found their difference)\r\n" );
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document.write( "40*1       40-1 = 39 \r\n" );
document.write( "20*2       20-2 = 18\r\n" );
document.write( "10*4       10-4 = 6\r\n" );
document.write( " 8*5        8-5 = 3\r\n" );
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document.write( "          \r\n" );
document.write( "Notice that the coefficient of the middle term, 9,\r\n" );
document.write( "in absolute value, does not appear in the column of \r\n" );
document.write( "differences above. Therefore the trinomial does not factor.\r\n" );
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document.write( "Edwin

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