document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=86907>Question 86907</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tutor:  Can you help me simplify this expression?\r<BR>\n" );
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document.write( "9(x-7)(x+7)/3(x-7)\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #62868 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=62868\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%28x-7%29%28x%2B7%29%2F3%28x-7%29 ALIGN=MIDDLE  ALT=\"9%28x-7%29%28x%2B7%29%2F3%28x-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "The first thing you can do is to divide the 3 in the denominator into the 9 in the numerator.<BR>\n" );
document.write( "The result of this division in that you are left with a 3 in the numerator. [You can also<BR>\n" );
document.write( "replace the 9 with 3*3 and then cancel the 3 in the denominator with one of the 3s in the<BR>\n" );
document.write( "numerator. The result is the same ... a 3 left in the numerator.] The problem is now simplified<BR>\n" );
document.write( "to:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28x-7%29%28x%2B7%29%2F%28x-7%29 ALIGN=MIDDLE  ALT=\"3%28x-7%29%28x%2B7%29%2F%28x-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Next you can cancel the (x-7) in the denominator with the (x-7) in the numerator. <BR>\n" );
document.write( "This cancellation is as follows:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28cross%28x-7%29%29%28x%2B7%29%2F%28cross%28x-7%29%29 ALIGN=MIDDLE  ALT=\"3%28cross%28x-7%29%29%28x%2B7%29%2F%28cross%28x-7%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "And the simplification asked for by the problem is what is now leftover, and is:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28x%2B7%29 ALIGN=MIDDLE  ALT=\"3%28x%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "If you want to, you can perform the distributed multiplication by 3 to get:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x+%2B+21 ALIGN=MIDDLE  ALT=\"3x+%2B+21\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Either answer [3(x + 7) or 3x + 21] is correct.<BR>\n" );
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document.write( "Hope this helps you to understand the problem.<BR>\n" );
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document.write( " </SPAN>\n" );
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