document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117456>Question 117456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sides of a triangle are x, x+7, and x+8 units long. What would the vaule of x have to be for the triangle to be a right triangle ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85464 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=85464\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2+(x+7)^2=(x+8)^2 this is the equation of a right angle.<BR>\n" );
document.write( "x^2+x^2+14x+49=x^2+16x+64<BR>\n" );
document.write( "x^2+14x-16x+49-64<BR>\n" );
document.write( "x^2-2x-15=0<BR>\n" );
document.write( "(x-5)(x+3)=0<BR>\n" );
document.write( "x-5=0<BR>\n" );
document.write( "x=5 answer.<BR>\n" );
document.write( "proof<BR>\n" );
document.write( "5^2+12^2=13^2<BR>\n" );
document.write( "25+144=169<BR>\n" );
document.write( "169=169 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );