document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=39681>Question 39681</A>: <I><SPAN STYLE=\"word-break: break-all;\"> factorise    4x²- 49 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #25092 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=25092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Factorise:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-49 ALIGN=MIDDLE  ALT=\"4x%5E2-49\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Notice that the given expression is the difference of two squares:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%29%5E2+-+%287%29%5E2 ALIGN=MIDDLE  ALT=\"%282x%29%5E2+-+%287%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The difference of two squares is factorable:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E2-B%5E2+=+%28A-B%29%28A%2BB%29 ALIGN=MIDDLE  ALT=\"A%5E2-B%5E2+=+%28A-B%29%28A%2BB%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Applying this to your expression, we have:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-49+=+%282x-7%29%282x%2B7%29 ALIGN=MIDDLE  ALT=\"4x%5E2-49+=+%282x-7%29%282x%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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