Results 1 to 2 of 2

Math Help - Polynomials And Factoring

  1. #1
    Newbie
    Joined
    Oct 2007
    Posts
    6

    Polynomials And Factoring

    A circle has an area of (9x^2 + 30x + 25) pie square centimeters, where x is a positive integer. Determine the smallest diameter that the circle can have.

    I have this question, and i don't understand it.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by sadaf_rehman View Post
    A circle has an area of (9x^2 + 30x + 25) pie square centimeters, where x is a positive integer. Determine the smallest diameter that the circle can have.

    I have this question, and i don't understand it.
    recall that the area of a circle is given by A = \pi r^2, where r is the radius.

    Note that  \pi \left( 9x^2 + 30x + 25 \right) = \pi (3x + 5)^2

    now can you continue?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Factoring Polynomials Help
    Posted in the Algebra Forum
    Replies: 1
    Last Post: January 13th 2010, 04:47 PM
  2. factoring polynomials
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: September 20th 2009, 01:05 AM
  3. Replies: 2
    Last Post: August 22nd 2009, 10:57 AM
  4. Factoring Polynomials
    Posted in the Algebra Forum
    Replies: 5
    Last Post: January 10th 2009, 01:03 PM
  5. Replies: 5
    Last Post: November 29th 2005, 03:22 PM

Search Tags


/mathhelpforum @mathhelpforum