Results 1 to 2 of 2

Math Help - cube roots

  1. #1
    Newbie
    Joined
    Oct 2010
    Posts
    1

    cube roots

    Okay I desperately need help with this one:

    cube root of 72*t^8 power.

    Sorry, new to the forum and not sure how to write it out using math signs.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by rebel15851 View Post
    Okay I desperately need help with this one:

    cube root of 72*t^8 power.

    Sorry, new to the forum and not sure how to write it out using math signs.
    Use the usual index laws to simplify \displaystyle \left( 72 t^8\right)^{1/3}. Note that 72 = 8x9 = 2^3 x 9.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Cube roots of -8
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: September 1st 2011, 05:17 AM
  2. Find all 3 cube roots of i
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: July 17th 2010, 05:56 PM
  3. Rationalizing denominators with cube roots
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 22nd 2009, 10:45 AM
  4. find the cube roots
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: December 11th 2008, 03:25 PM
  5. Cube Roots of -1 (complex numbers)
    Posted in the Algebra Forum
    Replies: 14
    Last Post: May 1st 2007, 05:22 PM

Search Tags


/mathhelpforum @mathhelpforum