Results 1 to 7 of 7

Math Help - complete the square

  1. #1
    Newbie
    Joined
    Dec 2008
    Posts
    3

    complete the square

    someone please show me how this works?

    im supposed to be putting a standard formed quadratic equation into a vertex equation like this one.

    4/3x^2 - 40x + 294
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member euclid2's Avatar
    Joined
    May 2008
    From
    Ottawa, Canada
    Posts
    400
    Awards
    1
    Quote Originally Posted by TJ #99 View Post
    someone please show me how this works?

    im supposed to be putting a standard formed quadratic equation into a vertex equation like this one.

    4/3x^2 - 40x + 294
    Do you know how to complete the square?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Dec 2008
    Posts
    3
    to tell u the truth i know nothing thats why im askin
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member euclid2's Avatar
    Joined
    May 2008
    From
    Ottawa, Canada
    Posts
    400
    Awards
    1
    Quote Originally Posted by TJ #99 View Post
    someone please show me how this works?

    im supposed to be putting a standard formed quadratic equation into a vertex equation like this one.

    4/3x^2 - 40x + 294
    Check out this link, I will get you started
    Completing the Square
     \frac{4}{3}x^2 - 40x + 294
     (\frac{4}{3}x^2 - 40x) + 294
    [tex] (\frac{4}{3}x^2 - 40x + 400 - 400) + 294{/math]
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Dec 2008
    Posts
    3
    thanks i will give it a shot
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Senior Member euclid2's Avatar
    Joined
    May 2008
    From
    Ottawa, Canada
    Posts
    400
    Awards
    1
    Quote Originally Posted by TJ #99 View Post
    thanks i will give it a shot
    did you get it?
    Follow Math Help Forum on Facebook and Google+

  7. #7
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,408
    Thanks
    1294
    Quote Originally Posted by euclid2 View Post
    Check out this link, I will get you started
    Completing the Square
     \frac{4}{3}x^2 - 40x + 294
     (\frac{4}{3}x^2 - 40x) + 294
    [tex] (\frac{4}{3}x^2 - 40x + 400 - 400) + 294{/math]
    You can only complete the square when your a value is 1.

    So...

    \frac{4}{3}x^2 - 40x + 294 = \frac{4}{3}(x^2 - 30x + \frac{441}{2})

    Go from there...
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. complete the square
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: December 1st 2008, 05:13 PM
  2. complete the square
    Posted in the Algebra Forum
    Replies: 4
    Last Post: June 8th 2008, 07:10 PM
  3. Complete the square of ax^2+bx+c where b=0
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 15th 2008, 03:03 PM
  4. Complete the Square??
    Posted in the Algebra Forum
    Replies: 1
    Last Post: October 30th 2007, 07:32 PM
  5. complete the square
    Posted in the Calculus Forum
    Replies: 2
    Last Post: September 16th 2007, 04:48 PM

Search Tags


/mathhelpforum @mathhelpforum