document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=997880>Question 997880</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a AP the sum of the three postive consecutive number is 21 and the sum of their sqaure is 155.find the number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #615814 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=615814\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+x+1+x+1+1= 21<BR>\n" );
document.write( "3x+3= 21<BR>\n" );
document.write( "3x= 18<BR>\n" );
document.write( "x= 6<BR>\n" );
document.write( "6+(6+1)+(6+1+1)= 21<BR>\n" );
document.write( "6+7+8= 21<BR>\n" );
document.write( "21= 21 We have the right answer<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "x^2+(x+1)^2+(x+2)^2= 155<BR>\n" );
document.write( "3x^2+3^2= 155<BR>\n" );
document.write( "3x^2= 146<BR>\n" );
document.write( "3x= 12.08<BR>\n" );
document.write( "x= 4.02<BR>\n" );
document.write( "4.02+5.02+6.02= 21<BR>\n" );
document.write( "15.06= 21 This is incorrect. Check your numbers, 155 is not the correct number or you're missing critical information. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );