document.write( "Question 49928: this is about factoring\r
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document.write( "3x^2+8x+5\r
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document.write( "how do i factor it?? \n" );
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Algebra.Com's Answer #33172 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 3x^2+8x+5\r \n" ); document.write( "\n" ); document.write( "You think of two numbers whose product is 3*5=15 \n" ); document.write( "and whose sum is 8. \n" ); document.write( "The numbers are 3 and 5 \n" ); document.write( "You rewrite the problem as follows: \n" ); document.write( "3x^2+3x+5x+5 \n" ); document.write( "You factor terms 1,2 and 3,4 separately, as follows: \n" ); document.write( "3x(x+1)+5(x+1) \n" ); document.write( "Factor again to get: \n" ); document.write( "(x+1)(3x+5) \n" ); document.write( "This the factor form you need.\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |