document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=498182>Question 498182</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1/r + 2/(1- r) = 4/r^2 ; solve for r </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #336981 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=336981\">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=1%2Fr+%2B+2%2F%281-+r%29+=+4%2Fr%5E2 ALIGN=MIDDLE  ALT=\"1%2Fr+%2B+2%2F%281-+r%29+=+4%2Fr%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ; solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r ALIGN=MIDDLE  ALT=\"r\"   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=1%281-+r%29%2Fr%281-+r%29+%2B+2r%2Fr%281-+r%29+=+4%2Fr%5E2 ALIGN=MIDDLE  ALT=\"1%281-+r%29%2Fr%281-+r%29+%2B+2r%2Fr%281-+r%29+=+4%2Fr%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=%28%281-+r%29%2B+2r%29%2Fr%281-+r%29+=+4%2Fr%5E2 ALIGN=MIDDLE  ALT=\"%28%281-+r%29%2B+2r%29%2Fr%281-+r%29+=+4%2Fr%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=%281-+r%2B+2r%29%2Fr%281-+r%29+=+4%2Fr%5E2 ALIGN=MIDDLE  ALT=\"%281-+r%2B+2r%29%2Fr%281-+r%29+=+4%2Fr%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=%281%2Br%29%2Fr%281-+r%29+=+4%2Fr%5E2 ALIGN=MIDDLE  ALT=\"%281%2Br%29%2Fr%281-+r%29+=+4%2Fr%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >....cross multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2Br%29r%5E2+=+4%2Ar%281-+r%29 ALIGN=MIDDLE  ALT=\"%281%2Br%29r%5E2+=+4%2Ar%281-+r%29\"   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=r%5E2%2Br%5E3+=+4r-+4r%5E2%29 ALIGN=MIDDLE  ALT=\"r%5E2%2Br%5E3+=+4r-+4r%5E2%29\"   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=r%5E2%2Br%5E3+-4r%2B+4r%5E2=0%29 ALIGN=MIDDLE  ALT=\"r%5E2%2Br%5E3+-4r%2B+4r%5E2=0%29\"   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=r%5E3%2B+5r%5E2-4r=0%29 ALIGN=MIDDLE  ALT=\"r%5E3%2B+5r%5E2-4r=0%29\"   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=r%28r%5E2%2B+5r-4%29=0%29 ALIGN=MIDDLE  ALT=\"r%28r%5E2%2B+5r-4%29=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "solutions:\r<BR>\n" );
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document.write( "first: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=0%29 ALIGN=MIDDLE  ALT=\"highlight%28r=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "second and third:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2%2B+5r-4=0%29 ALIGN=MIDDLE  ALT=\"r%5E2%2B+5r-4=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >...use quadratic formula to solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r ALIGN=MIDDLE  ALT=\"r\"   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=r+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"r+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   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=r+=+%28-5+%2B-+sqrt%28+5%5E2-4%2A1%2A%28-4%29+%29%29%2F%282%2A1%29+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+%2B-+sqrt%28+5%5E2-4%2A1%2A%28-4%29+%29%29%2F%282%2A1%29+\"   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=r+=+%28-5+%2B-+sqrt%28+25%2B16+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+%2B-+sqrt%28+25%2B16+%29%29%2F2+\"   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=r+=+%28-5+%2B-+sqrt%28+41+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+%2B-+sqrt%28+41+%29%29%2F2+\"   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=r+=+%28-5+%2B-+6.4%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+%2B-+6.4%29%2F2+\"   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=r+=+%28-5+%2B6.4%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+%2B6.4%29%2F2+\"   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=r+=+%281.4%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%281.4%29%2F2+\"   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=highlight%28r+=+0.7%29+ ALIGN=MIDDLE  ALT=\"highlight%28r+=+0.7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "or\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-5+-6.4%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-5+-6.4%29%2F2+\"   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=r+=+%28-11.4%29%2F2+ ALIGN=MIDDLE  ALT=\"r+=+%28-11.4%29%2F2+\"   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=highlight%28r+=+-5.7%29+ ALIGN=MIDDLE  ALT=\"highlight%28r+=+-5.7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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