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Maths_hL_P1_Q1_a

Comments

  • #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!!!!


  • #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


  • #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:


  • #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


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


    Here's how I did it.

    I really am putting off studying for French...


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  • #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


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