Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Quick Algebra Question

  • 28-07-2011 1:15pm
    #1
    PGL
    Registered Users, Registered Users 2 Posts: 762 ✭✭✭


    I'm very rusty on the old algebra unfortunately, so would appreciate someone's help:

    Is the following correct?:

    (a/(b-c))^2 = a^2/(b-c)^2 = a^2/(b^2-2bc+c^2)

    cheers folks


Comments

  • #2
    Delphi91
    Registered Users, Registered Users 2 Posts: 1,501 ✭✭✭Delphi91


    Yep :)


  • #3
    PGL
    Registered Users, Registered Users 2 Posts: 762 ✭✭✭PGL


    Delphi91 wrote: »
    Yep :)
    Thanks for quick response Delphi - good to know I haven't lost it just yet!


  • #4
    Fremen
    Registered Users, Registered Users 2 Posts: 2,481 ✭✭✭Fremen


    If you have doubts about that kind of thing, you should try to come up with your own way to check it. For instance, pick a few different values for a,b and c, substitute them into the equation and see if the numbers work out.


  • #5
    PGL
    Registered Users, Registered Users 2 Posts: 762 ✭✭✭PGL


    Fremen wrote: »
    If you have doubts about that kind of thing, you should try to come up with your own way to check it. For instance, pick a few different values for a,b and c, substitute them into the equation and see if the numbers work out.

    Very fair point Fremen - as I said I'm a bit rusty!


Advertisement