document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=385283>Question 385283</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help factor by grouping:\r<BR>\n" );
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document.write( "p^2 - q^2 + r^2 - 2pr\r<BR>\n" );
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document.write( "This is straight from book.\r<BR>\n" );
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document.write( "Thanks for showing steps. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #272604 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=272604\">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=p%5E2+-+q%5E2+%2B+r%5E2+-+2pr ALIGN=MIDDLE  ALT=\"p%5E2+-+q%5E2+%2B+r%5E2+-+2pr\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given expression.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%5E2+-+2pr+%2B+r%5E2+-+q%5E2++ ALIGN=MIDDLE  ALT=\"p%5E2+-+2pr+%2B+r%5E2+-+q%5E2++\"   DISABLED_style= \"max-width:90%; height:auto;\" > Rearrange the terms.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28p-r%29%5E2+-+q%5E2++ ALIGN=MIDDLE  ALT=\"%28p-r%29%5E2+-+q%5E2++\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%5E2+-+2pr+%2B+r%5E2 ALIGN=MIDDLE  ALT=\"p%5E2+-+2pr+%2B+r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28p-r%29%5E2 ALIGN=MIDDLE  ALT=\"%28p-r%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28p-r%2Bq%29%28p-r-q%29++ ALIGN=MIDDLE  ALT=\"%28p-r%2Bq%29%28p-r-q%29++\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now use the difference of squares formula to factor.\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%5E2+-+q%5E2+%2B+r%5E2+-+2pr ALIGN=MIDDLE  ALT=\"p%5E2+-+q%5E2+%2B+r%5E2+-+2pr\"   DISABLED_style= \"max-width:90%; height:auto;\" > factors to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28p-r%2Bq%29%28p-r-q%29++ ALIGN=MIDDLE  ALT=\"%28p-r%2Bq%29%28p-r-q%29++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "In other words, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%5E2+-+q%5E2+%2B+r%5E2+-+2pr=%28p-r%2Bq%29%28p-r-q%29++ ALIGN=MIDDLE  ALT=\"p%5E2+-+q%5E2+%2B+r%5E2+-+2pr=%28p-r%2Bq%29%28p-r-q%29++\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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