document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=223804>Question 223804</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm taking intermediate algebra 10 years after I last took it.  We've been given a sheet to review factoring and I've been having problems remembering how to factor, particularly the rules involving quadratic equations.  Here are four of the problems that are giving me grief:\r<BR>\n" );
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document.write( "#1.  Factor 10x^2+9x-9 <BR>\n" );
document.write( "I came up with 10xs^2+3(3x-3)\r<BR>\n" );
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document.write( "#2. Factor 2ax+2ay-bx-by<BR>\n" );
document.write( "My answer is 2a(x+y)-b(x+y)\r<BR>\n" );
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document.write( "#3.  Factor x(y-8)-7(8-y)<BR>\n" );
document.write( "My answer is xy-8x-56-7y\r<BR>\n" );
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document.write( "# 4. Factor 4-x^2<BR>\n" );
document.write( "Can't even think where to begin with this one!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #167275 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=167275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> #1. Factor 10x^2+9x-9 <BR>\n" );
document.write( "I came up with 10x^2+3(3x-3)<BR>\n" );
document.write( "= (5x - 3)*(2x + 3)<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "#2. Factor 2ax+2ay-bx-by<BR>\n" );
document.write( "My answer is 2a(x+y)-b(x+y)<BR>\n" );
document.write( "then combine the terms<BR>\n" );
document.write( "= (2a-b)*(x+y)<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "#3. Factor x(y-8)-7(8-y)<BR>\n" );
document.write( "My answer is xy-8x-56-7y<BR>\n" );
document.write( "(8-y) = -(y-8)<BR>\n" );
document.write( "= (x+7)*(y-8)<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "# 4. Factor 4-x^2<BR>\n" );
document.write( "The difference of 2 squares, a^2 - b^2, is (a-b)*(a+b)<BR>\n" );
document.write( "= (2-x)*(2+x) </SPAN>\n" );
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