document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78832>Question 78832</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Rewrite the middle term as the sum of two terms and then factor by grouping.<BR>\n" );
document.write( "     x^2 + 2x – 80\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56640 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=56640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rewrite the middle term as the sum of two terms and then factor by grouping.<BR>\n" );
document.write( "x^2 + 2x – 80 <BR>\n" );
document.write( "Find two numbers whose product is -80 and whose sum is 2:<BR>\n" );
document.write( "The numbers are +10 and -8<BR>\n" );
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document.write( "Rewrite:<BR>\n" );
document.write( "x^2+10x-8x-80<BR>\n" );
document.write( "x(x+10)-8(x+10)<BR>\n" );
document.write( "(x+10)(x-8)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );