document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=972471>Question 972471</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i am to do this math problem and are having a rough time of it and i would like your assitance.<BR>\n" );
document.write( "the problem is to solve using addition or subtraction. I set it up as addition but is that right?\r<BR>\n" );
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document.write( "x^2-3x-9/x-9 + x^2-7x+27/9-x\r<BR>\n" );
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document.write( "now I understand that the denominators need to be the same but I'm confused as to how this is done.\r<BR>\n" );
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document.write( "also, do I add both numerators together or should i subtract. I tried to work the problem already but I'm so lost. i do know the answer key has an answer of 4. I just can't find that answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594787 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=594787\">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=%28x%5E2-3x-9%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-3x-9%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-7x%2B27%29%2F%289-x%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-7x%2B27%29%2F%289-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "right now the denominators are not the same but we can make them the same<BR>\n" );
document.write( "Factor out -1 from the 2nd denominator<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-3x-9%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-3x-9%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-7x%2B27%29%2F%28-1%28x-9%29%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-7x%2B27%29%2F%28-1%28x-9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "dividing -1 into the numerator, changes the sign so we have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-3x-9%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-3x-9%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-7x%2B27%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-7x%2B27%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "now we can write it:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28x%5E2-3x-9%29-%28x%5E2-7x%2B27%29%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28%28x%5E2-3x-9%29-%28x%5E2-7x%2B27%29%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "removing the brackets changes the signs after the minus<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-3x-9-x%5E2%2B7x-27%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-3x-9-x%5E2%2B7x-27%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "combine like terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-x%5E2-3x%2B7x-9-27%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-x%5E2-3x%2B7x-9-27%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "now we have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284x-36%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%284x-36%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "factor 4 out in the numerator, (x-9) cancels<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%28x-9%29%29%2F%28x-9%29 ALIGN=MIDDLE  ALT=\"%284%28x-9%29%29%2F%28x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );