document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=74321>Question 74321</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Choose best answer.  thanks!\r<BR>\n" );
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document.write( "36y^2-25\r<BR>\n" );
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document.write( "A.) (6y+5)(6y-5)  B.) (x-3)(x+1)<BR>\n" );
document.write( "C.)  (x+3)(x+9)   d.) prime<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #53329 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=53329\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Notice how we are dealing with perfect squares here. So the equation factors to <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286y%2B5%29%286y-5%29 ALIGN=MIDDLE  ALT=\"%286y%2B5%29%286y-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > which foils back to <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286y%2B5%29%286y-5%29=6y%2A6y%2Bcross%286y%2A5-6y%2A5%29-5%2A5=36y%5E2-25 ALIGN=MIDDLE  ALT=\"%286y%2B5%29%286y-5%29=6y%2A6y%2Bcross%286y%2A5-6y%2A5%29-5%2A5=36y%5E2-25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In a more general sense<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-y%5E2 ALIGN=MIDDLE  ALT=\"x%5E2-y%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > factors to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2By%29%28x-y%29 ALIGN=MIDDLE  ALT=\"%28x%2By%29%28x-y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or in other words<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-y%5E2=%28x%2By%29%28x-y%29 ALIGN=MIDDLE  ALT=\"x%5E2-y%5E2=%28x%2By%29%28x-y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is the difference of squares where x=6 and y=5<BR>\n" );
document.write( "So the answer is a). <BR>\n" );
document.write( "Hope this will help you with further difference of squares problems. </SPAN>\n" );
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