Results 1 to 4 of 4

Math Help - I need more help!!!

  1. #1
    Junior Member
    Joined
    Aug 2006
    Posts
    28

    I need more help!!!

    This is the problem.
    A number is 42 less than its square. Find all such numbers.

    Can you please tell me how to do this? what steps to follow. Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    9
    Quote Originally Posted by Suwanee View Post
    This is the problem.
    A number is 42 less than its square. Find all such numbers.

    Can you please tell me how to do this? what steps to follow. Thanks.
    x=x^2-42
    Thus,
    x^2-x-42=0
    Thus,
    (x-7)(x+6)=0
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Aug 2006
    Posts
    28

    Thanks!!!

    thank you.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Forum Admin topsquark's Avatar
    Joined
    Jan 2006
    From
    Wellsville, NY
    Posts
    9,966
    Thanks
    350
    Awards
    1
    Quote Originally Posted by Suwanee View Post
    thank you.
    Keep this up and you'll have more posts than Quick before too long.

    -Dan
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum