document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=642610>Question 642610</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Square the binomial\r<BR>\n" );
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document.write( "(7x-9)^2\r<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 #404153 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=404153\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x-9%29%5E2 ALIGN=MIDDLE  ALT=\"%287x-9%29%5E2\"   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=%287x-9%29%287x-9%29 ALIGN=MIDDLE  ALT=\"%287x-9%29%287x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Expand. Remember something like <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=x%2Ax ALIGN=MIDDLE  ALT=\"x%5E2=x%2Ax\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Now let's FOIL the expression.\r<BR>\n" );
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document.write( "Remember, when you FOIL an expression, you follow this procedure:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28highlight%287x%29-9%29%28highlight%287x%29-9%29 ALIGN=MIDDLE  ALT=\"%28highlight%287x%29-9%29%28highlight%287x%29-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply the <font color=\"red\">F</font>irst terms:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287%2Ax%29%2A%287%2Ax%29=49%2Ax%5E2 ALIGN=MIDDLE  ALT=\"%287%2Ax%29%2A%287%2Ax%29=49%2Ax%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=%28highlight%287x%29-9%29%287x%2Bhighlight%28-9%29%29 ALIGN=MIDDLE  ALT=\"%28highlight%287x%29-9%29%287x%2Bhighlight%28-9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply the <font color=\"red\">O</font>uter terms:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287%2Ax%29%2A%28-9%29=-63%2Ax ALIGN=MIDDLE  ALT=\"%287%2Ax%29%2A%28-9%29=-63%2Ax\"   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=%287x%2Bhighlight%28-9%29%29%28highlight%287x%29-9%29 ALIGN=MIDDLE  ALT=\"%287x%2Bhighlight%28-9%29%29%28highlight%287x%29-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply the <font color=\"red\">I</font>nner terms:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-9%29%2A%287%2Ax%29=-63%2Ax ALIGN=MIDDLE  ALT=\"%28-9%29%2A%287%2Ax%29=-63%2Ax\"   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=%287x%2Bhighlight%28-9%29%29%287x%2Bhighlight%28-9%29%29 ALIGN=MIDDLE  ALT=\"%287x%2Bhighlight%28-9%29%29%287x%2Bhighlight%28-9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply the <font color=\"red\">L</font>ast terms:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-9%29%2A%28-9%29=81 ALIGN=MIDDLE  ALT=\"%28-9%29%2A%28-9%29=81\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "---------------------------------------------------\r<BR>\n" );
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document.write( "So we have the terms: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=49%2Ax%5E2 ALIGN=MIDDLE  ALT=\"49%2Ax%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-63%2Ax ALIGN=MIDDLE  ALT=\"-63%2Ax\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-63%2Ax ALIGN=MIDDLE  ALT=\"-63%2Ax\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=81 ALIGN=MIDDLE  ALT=\"81\"   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=49%2Ax%5E2-63%2Ax-63%2Ax%2B81 ALIGN=MIDDLE  ALT=\"49%2Ax%5E2-63%2Ax-63%2Ax%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now add every term listed above to make a single expression.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=49x%5E2-126x%2B81 ALIGN=MIDDLE  ALT=\"49x%5E2-126x%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now combine like terms.\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x-9%29%5E2 ALIGN=MIDDLE  ALT=\"%287x-9%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > FOILs to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=49x%5E2-126x%2B81 ALIGN=MIDDLE  ALT=\"49x%5E2-126x%2B81\"   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=%287x-9%29%5E2=49x%5E2-126x%2B81 ALIGN=MIDDLE  ALT=\"%287x-9%29%5E2=49x%5E2-126x%2B81\"   DISABLED_style= \"max-width:90%; height:auto;\" > for all values of x.\r<BR>\n" );
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document.write( "Jim<BR>\n" );
document.write( "<font color=\"red\">--------------------------------------------------------------------------------------------------------------</font> </SPAN>\n" );
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