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 » Math Topics » alt.algebra.help.independent

Topic: Difference of cubes - Example from ucdavis site
Replies: 1   Last Post: Dec 9, 2010 9:54 AM

Advanced Search

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

Posts: 4
Registered: 11/30/10
Difference of cubes - Example from ucdavis site
Posted: Dec 9, 2010 6:49 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

There's a limit example on the ucdavis site (Problem 7) which uses a difference of cubes to solve:


The solution notes that x-1 = (x^(1/3))^3-1^3 which I agree. However how does this equal x^(1/3)-1 as they infer?


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.