document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631056>Question 631056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can this be factored using the ac test?\r<BR>\n" );
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document.write( "3x^2 + 11 -4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #397323 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=397323\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> can this be factored using the ac test? <BR>\n" );
document.write( "3x^2 + 11x -4<BR>\n" );
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document.write( "Think of 2 numbers whose product is ac = 3*-4 = -12<BR>\n" );
document.write( "and whose sum is b = 11<BR>\n" );
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document.write( "The numbers are +12 and -1<BR>\n" );
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document.write( "3x^2 + 12x -x -4 <BR>\n" );
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document.write( "3x(x+4)-(x+4)<BR>\n" );
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document.write( "= (x+4)(3x-1)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===============<BR>\n" );
document.write( " </SPAN>\n" );
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