document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=918115>Question 918115</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3 5 6=151872<BR>\n" );
document.write( "5 5 6=253094<BR>\n" );
document.write( "5 6 7=303585<BR>\n" );
document.write( "5 5 3=251573<BR>\n" );
document.write( "9 4 7=? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #556923 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=556923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2B5%2B6=151872 ALIGN=MIDDLE  ALT=\"3%2B5%2B6=151872\"   DISABLED_style= \"max-width:90%; height:auto;\" > ...here we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15 ALIGN=MIDDLE  ALT=\"15\"   DISABLED_style= \"max-width:90%; height:auto;\" >|<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18 ALIGN=MIDDLE  ALT=\"18\"   DISABLED_style= \"max-width:90%; height:auto;\" >|<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "=> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A5%29=15 ALIGN=MIDDLE  ALT=\"%283%2A5%29=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A6%29=18 ALIGN=MIDDLE  ALT=\"%283%2A6%29=18\"   DISABLED_style= \"max-width:90%; height:auto;\" > and find out how to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "if we use<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%2Ab%29%2B%28a%2Ac%29-c ALIGN=MIDDLE  ALT=\"%28a%2Ab%29%2B%28a%2Ac%29-c\"   DISABLED_style= \"max-width:90%; height:auto;\" > we got\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A5%29=15 ALIGN=MIDDLE  ALT=\"%283%2A5%29=15\"   DISABLED_style= \"max-width:90%; height:auto;\" >and<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A6%29=18 ALIGN=MIDDLE  ALT=\"%283%2A6%29=18\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%2B18-6=27 ALIGN=MIDDLE  ALT=\"15%2B18-6=27\"   DISABLED_style= \"max-width:90%; height:auto;\" >.. =>now interchange the digit place (reverse) and you will get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" >; so, we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15 ALIGN=MIDDLE  ALT=\"15\"   DISABLED_style= \"max-width:90%; height:auto;\" >|<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18 ALIGN=MIDDLE  ALT=\"18\"   DISABLED_style= \"max-width:90%; height:auto;\" >|<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "so, formula is:\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Bb%2Bc+=+%28a%2Ab%29%28a%2Ac%29highlight%28%28%28a%2Ab%29%2B%28a%2Ac%29-c%29%29%3C-reverse ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "check this one:\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7=303585 ALIGN=MIDDLE  ALT=\"5%2B6%2B7=303585\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7+=+%285%2A6%29%285%2A7%29%28%285%2A6%29%2B%285%2A7%29-7%29 ALIGN=MIDDLE  ALT=\"5%2B6%2B7+=+%285%2A6%29%285%2A7%29%28%285%2A6%29%2B%285%2A7%29-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7+=+%2830%29%2835%29%28%2830%29%2B%2835%29-7%29 ALIGN=MIDDLE  ALT=\"5%2B6%2B7+=+%2830%29%2835%29%28%2830%29%2B%2835%29-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7+=+%2830%29%2835%29%2865-7%29 ALIGN=MIDDLE  ALT=\"5%2B6%2B7+=+%2830%29%2835%29%2865-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7+=+%2830%29%2835%29highlight%28%2858%29%29%3C-reverse%29 ALIGN=MIDDLE  ALT=\"5%2B6%2B7+=+%2830%29%2835%29highlight%28%2858%29%29%3C-reverse%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B6%2B7+=+%2830%29%2835%29%2885%29 ALIGN=MIDDLE  ALT=\"5%2B6%2B7+=+%2830%29%2835%29%2885%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7 ALIGN=MIDDLE  ALT=\"9%2B4%2B7\"   DISABLED_style= \"max-width:90%; height:auto;\" >= ??<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Bb%2Bc+=+%28a%2Ab%29%28a%2Ac%29%28%28a%2Ab%29%2B%28a%2Ac%29-c%29 ALIGN=MIDDLE  ALT=\"a%2Bb%2Bc+=+%28a%2Ab%29%28a%2Ac%29%28%28a%2Ab%29%2B%28a%2Ac%29-c%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7+=+%289%2A4%29%289%2A7%29%28%289%2A4%29%2B%289%2A7%29-7%29 ALIGN=MIDDLE  ALT=\"9%2B4%2B7+=+%289%2A4%29%289%2A7%29%28%289%2A4%29%2B%289%2A7%29-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7+=+%2836%29%2863%29%28%2836%29%2B%2863%29-7%29 ALIGN=MIDDLE  ALT=\"9%2B4%2B7+=+%2836%29%2863%29%28%2836%29%2B%2863%29-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7+=+%2836%29%2863%29%2899-7%29 ALIGN=MIDDLE  ALT=\"9%2B4%2B7+=+%2836%29%2863%29%2899-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7+=+%2836%29%2863%29highlight%28%2892%29%29%3C-reverse%29 ALIGN=MIDDLE  ALT=\"9%2B4%2B7+=+%2836%29%2863%29highlight%28%2892%29%29%3C-reverse%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7+=+%2836%29%2863%29%2829%29 ALIGN=MIDDLE  ALT=\"9%2B4%2B7+=+%2836%29%2863%29%2829%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "answer is: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2B4%2B7=366329 ALIGN=MIDDLE  ALT=\"9%2B4%2B7=366329\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );