document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=131488>Question 131488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> factor:<BR>\n" );
document.write( "4x(squared)-49y(squared)\r<BR>\n" );
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document.write( "factor:<BR>\n" );
document.write( "4x(squared)-28x+49\r<BR>\n" );
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document.write( "simplify the rational expression<BR>\n" );
document.write( "       1<BR>\n" );
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document.write( "    1  +   1<BR>\n" );
document.write( "    ___   ____<BR>\n" );
document.write( "     r     x<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #95971 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=95971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Factor:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-49y%5E2 ALIGN=MIDDLE  ALT=\"4x%5E2-49y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > This 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-%287y%29%5E2 ALIGN=MIDDLE  ALT=\"%282x%29%5E2-%287y%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The difference of two squares is factored like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E2-B%5E2+=+%28A%2BB%29%28A-B%29 ALIGN=MIDDLE  ALT=\"A%5E2-B%5E2+=+%28A%2BB%29%28A-B%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Apply this toyour problem:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%29%5E2-%287y%29%5E2+=+%282x%2B7y%29%282x-7y%29 ALIGN=MIDDLE  ALT=\"%282x%29%5E2-%287y%29%5E2+=+%282x%2B7y%29%282x-7y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Factor:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-28x%2B49 ALIGN=MIDDLE  ALT=\"4x%5E2-28x%2B49\"   DISABLED_style= \"max-width:90%; height:auto;\" > Since the first and last terms are perfect squares: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2+=+%282x%29%5E2 ALIGN=MIDDLE  ALT=\"4x%5E2+=+%282x%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=49+=+7%5E2 ALIGN=MIDDLE  ALT=\"49+=+7%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, also, twice 2(7) = 28, the middle term of your equation, try:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-28x%2B49+=+%282x-7%29%282x-7%29 ALIGN=MIDDLE  ALT=\"4x%5E2-28x%2B49+=+%282x-7%29%282x-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x-7%29%5E2 ALIGN=MIDDLE  ALT=\"%282x-7%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );