document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=61945>Question 61945</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me factor the polynomial 15y^2-y-28 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #42661 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=42661\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> factor the polynomial 15y^2 - y - 28<BR>\n" );
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document.write( "This is a \"try and see situation\"<BR>\n" );
document.write( "Assume that the factors of 28; 4 & 7 are involved, 14 & 2 are also factors but since the middle coefficient is -1, it's not likely<BR>\n" );
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document.write( "Start with this: (__x - 4)(__x + 7)<BR>\n" );
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document.write( "Try various factors of 15, put the signs in to satisfy the coefficient of the middle term, -1 <BR>\n" );
document.write( "Try 3 & 5<BR>\n" );
document.write( "(3x + 4)(5x - 7) = 0<BR>\n" );
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document.write( "fOIL it to be sure you have it:<BR>\n" );
document.write( "15x^2 - 21x + 20x - 28 confirms it<BR>\n" );
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document.write( "Did this help?<BR>\n" );
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