document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=360349>Question 360349</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please factorise the following (Please do not use the quadratic formula)\r<BR>\n" );
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document.write( "36x squared -7x-4\r<BR>\n" );
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document.write( "Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #257149 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=257149\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 36x^2 - 7x - 4<BR>\n" );
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document.write( "It will be (ax + b)*(cx + d)<BR>\n" );
document.write( "a*c = 36<BR>\n" );
document.write( "b*d = -4 (meaning the signs are different)<BR>\n" );
document.write( "ad + bc = -7 (the odd number --> ad or bc, but not both are odd numbers.<BR>\n" );
document.write( "--> a & d are both odd OR b & c are both odd<BR>\n" );
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document.write( "You can make a table to cover all possibilities, or use the info above<BR>\n" );
document.write( "36 = 1*36<BR>\n" );
document.write( "2*18<BR>\n" );
document.write( "3*12<BR>\n" );
document.write( "4*9<BR>\n" );
document.write( "6*6<BR>\n" );
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document.write( "4 = 1*4 or 2*2<BR>\n" );
document.write( "Try combinations:<BR>\n" );
document.write( "(3x + 2)*(12x - 2) doesn't work, no odd numbered products.<BR>\n" );
document.write( "(3x + 4)*(x - 4) --> -3x not -7x<BR>\n" );
document.write( "(4x + b)*(9x + d)<BR>\n" );
document.write( "(4x + 1)*(9x - 4) works<BR>\n" );
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