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anonymous

  • 5 years ago

I need help with simplifying this equation :P i totally dont remember the steps :P its in an attachment

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  1. PleaseHelpMe
    • 5 years ago
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    whats the equation

  2. anonymous
    • 5 years ago
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    its not letting me uplaod hold on a sec :)

  3. anonymous
    • 5 years ago
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    here :)

    1 Attachment
  4. anonymous
    • 5 years ago
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    can u see it ok?

  5. Yuki
    • 5 years ago
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    yep

  6. Yuki
    • 5 years ago
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    remember that when you change a division into a multiplication you have to flip the number ?

  7. anonymous
    • 5 years ago
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    Yep. so u would do that to the the second equation?

  8. anonymous
    • 5 years ago
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    reciprocal or something?

  9. Yuki
    • 5 years ago
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    yeah, on the second term so it would look like (3x+12)/(4x-18 * (x-3)/(x+4)

  10. anonymous
    • 5 years ago
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    alright.

  11. Yuki
    • 5 years ago
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    when you factor out the common factors from the left rational expression, what do you get?

  12. anonymous
    • 5 years ago
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    Arggghhh so hard to solve in that typed format :P hold on

  13. Yuki
    • 5 years ago
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    what does 3x+12 factor into?

  14. Yuki
    • 5 years ago
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    are you asking me what it is ?

  15. Yuki
    • 5 years ago
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    nvm the "are you ~" part

  16. anonymous
    • 5 years ago
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    No of course not i am trying to talk to my mother and you and other people all at the same time therefore its hard to concentrate :P so hold on lol sowee about not answering so quickly :P

  17. anonymous
    • 5 years ago
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    Hmmmm i think the answer is A maybe C do u agree? or did it not attach that part :P

  18. Yuki
    • 5 years ago
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    3x+12 factors into 3(x+4), so it cancels with the denominator of the right side of the rational expression

  19. anonymous
    • 5 years ago
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    right.

  20. anonymous
    • 5 years ago
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    these are my choices :)

  21. Yuki
    • 5 years ago
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    4x-18 does factor into 2(2x-9), but you have no term on the numerator that cancels with this , so it is a waste

  22. anonymous
    • 5 years ago
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    so it is C then...

  23. Yuki
    • 5 years ago
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    the uhhuh looks right

  24. anonymous
    • 5 years ago
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    lol so u like my labels... ^^

  25. Yuki
    • 5 years ago
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    oops

  26. anonymous
    • 5 years ago
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    lol and okie dokie :P totally off on that one

  27. Yuki
    • 5 years ago
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    it's the yep, sorry I didn't look at it carefully

  28. anonymous
    • 5 years ago
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    woo hoo! thats the one i thought it might be!!! :)

  29. Yuki
    • 5 years ago
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    most rational expressions work exactly the same way, so as long as you can factor polynomials, all you have to do is to see which one divides out and cancel.

  30. anonymous
    • 5 years ago
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    hmmm so the answer to this one i will attach them would be A?

  31. anonymous
    • 5 years ago
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    and alright i see! :)

  32. anonymous
    • 5 years ago
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  33. Yuki
    • 5 years ago
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    hoot would be the answer

  34. Yuki
    • 5 years ago
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    because \[x^2-16 = (x+4)(x-4)\]

  35. Yuki
    • 5 years ago
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    only (x-4) divides out

  36. anonymous
    • 5 years ago
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    Ahhhh alright i can see why i was wong. ^^ oh ok like 1 or two more.. :) So then on this one:

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  37. anonymous
    • 5 years ago
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    it would be

  38. anonymous
    • 5 years ago
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    It would be YA right? :P im a little lost on this concept :p

  39. Yuki
    • 5 years ago
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    this one you cannot cancel anything, so you do long division

  40. Yuki
    • 5 years ago
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    are you comfortable with it?

  41. anonymous
    • 5 years ago
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    Not rly :P never been very good at it :P

  42. Yuki
    • 5 years ago
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    give me a couple of min to show you how it works, I cannot type it so I will upload a file

  43. anonymous
    • 5 years ago
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    alright :) thanks a bunch!!

  44. Yuki
    • 5 years ago
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    this is the first step

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  45. Yuki
    • 5 years ago
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    this is the next step

    1 Attachment
  46. anonymous
    • 5 years ago
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    alright that looks familiar and simple enough i get it so far :)

  47. anonymous
    • 5 years ago
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    YES!!!!! i was rite!! :D

  48. anonymous
    • 5 years ago
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    im pretty sure at least lol :) u are helping me wonders!! :D

  49. anonymous
    • 5 years ago
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    Meaning it would be ya correct?

  50. Yuki
    • 5 years ago
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    the last step

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  51. anonymous
    • 5 years ago
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    hmmmm alright then!! :D i was right!! woooo !!! u just made my day! :)

  52. Yuki
    • 5 years ago
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    I'm glad I was of help

  53. Yuki
    • 5 years ago
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    good luck.

  54. anonymous
    • 5 years ago
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    :)

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