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

Maths_hL_P1_Q1_a

Options

Comments

  • Options
    #2
    sariane
    Closed Accounts Posts: 41 ✭sariane


    i brought the root x over to one side. Leaving a on it's own
    got the common denominator of the 2 fractions, took out the 3, things cancelled and i was left with a=3 i think thats right maybe!!!!


  • Options
    #3
    whassupp2
    Closed Accounts Posts: 1,031 ✭✭✭whassupp2


    x-9= (<x +a)(<x - 3)

    multiply it out.
    square both sides.
    takes ages and gets really complicated but it works. there are other easier ways.
    I only wish i got it in the exam


  • Options
    #4
    emma.oshea
    Closed Accounts Posts: 18 ✭emma.oshea


    Ah ya that make sence, i get it now, cheers 3 more days to goooooo :eek:


  • Options
    #5
    Jamari Gifted Mucous
    Posts: 0 ✭✭✭✭ Jamari Gifted Mucous


    chang x-9 to (rootX - 3)(rootX + 3)

    then cancel above and below

    and you're done


  • Options
    #6
    Attractive Nun
    Closed Accounts Posts: 1,203 ✭✭✭Attractive Nun


    Here's how I did it.

    I really am putting off studying for French...


  • Advertisement
  • Options
    #7
    Raphael
    Closed Accounts Posts: 8,880 ✭✭✭Raphael


    ...square both sides? if you multiply it out you get:

    x-9 = x+a<x-3<x-3a

    9=3a
    3=a


Advertisement