document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64090>Question 64090</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the “ac test” to determine if the following trinomial can be factored.  Find the values of ma and n for the trinomial so that it can be factored:\r<BR>\n" );
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document.write( "x^2 + 2x - 15<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #44722 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=44722\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is different terminology for factoring depending on your book and teacher, I am not familiar with your terminology.<BR>\n" );
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document.write( "x^2 + 2x - 15<BR>\n" );
document.write( "The coefficient of x^2 is a, the coefficient of x is b, and the constant is c.<BR>\n" );
document.write( "a=1, b=2, c=-15<BR>\n" );
document.write( "ac=(1)(-15)=-15<BR>\n" );
document.write( "We need 2 numbers that multiply to get ac=-15 and add to get b=2<BR>\n" );
document.write( "5*-3=-15<BR>\n" );
document.write( "5+(-3)=2<BR>\n" );
document.write( "Therefore, the trinomial factors out to be:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B2x-15=%28x%2B5%29%28x-3%29 ALIGN=MIDDLE  ALT=\"x%5E2%2B2x-15=%28x%2B5%29%28x-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Hope this helped.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
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