document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84894>Question 84894</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0073048313/algebrahomeworkh>algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I just submitted a question on rewriting the middle term as the sum of two terms and then factor by grouping. <BR>\n" );
document.write( "x^2+13+30<BR>\n" );
document.write( "please help, I need help.\r<BR>\n" );
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document.write( "May I rewrite the question as x^2 + 13x + 30\r<BR>\n" );
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document.write( "We need to find 2 numbers whose product is 30 and sum is 13.\r<BR>\n" );
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document.write( "The numbers are obviously 10 and 3.\r<BR>\n" );
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document.write( "==> x^2 + 10x + 3x + 30\r<BR>\n" );
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document.write( "= x(x+10) + 3(x+10)\r<BR>\n" );
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document.write( "= (x+10) (x+3)\r<BR>\n" );
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document.write( "Thus the factorized form is (x+10)(x+3)\r<BR>\n" );
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document.write( "Hope it is clear. </SPAN>\n" );
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