Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Topic: Number with n^3 , 109
Replies: 5   Last Post: Jan 10, 2013 5:42 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 2,142
Registered: 12/13/04
Number with n^3 , 109
Posted: Jan 1, 2013 10:52 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Hello, teacher~

n^3 + (n+1)^3 + (n+2)^3 = 57 + 59 + 61 + ... + 109

Find the "n".

Answer is 8.


This is a solution of elementary schoolchild(of course, clever)

Can you understand it ? I need your explanation.(used formula etc)

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum 1994-2015. All Rights Reserved.