document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31430>Question 31430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If (r+ (1/r))^2=5, then find the value of r^3 + 1/r^3. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #18255 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=18255\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (R+1/R)^2=5<BR>\n" );
document.write( "(R+1/R)=5^0.5...CUBE BOTH SIDES<BR>\n" );
document.write( "(R+1/R)^3=(5^0.5)^3<BR>\n" );
document.write( "R^3+1/R^3 +3*R*(1/R)*(R+1/R)=5*SQRT5<BR>\n" );
document.write( "R^3+1/R^3=5*SQRT(5)-3*SQRT(5)=2*SQRT(5) </SPAN>\n" );
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