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neverforgetvivistee

  • 3 years ago

Solving rational equations: (2x+2) (4x^2-16) (5x-5) ------- - ---------- = -------------- (3x-12) (3x^2-24x+48) (3x^2-24x+48) I have the answer already, but I don't know how it came to be I try to do it by factoring the 3x^2-24x+48 's and get 3(x^2-8+16) then I multiply that by everything, as with the other denominators, and so on but then I get a huge, incorrect answer Someone please help even if it's one sentence. I want to get this problem done by tonight

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  1. rld613
    • 3 years ago
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    Firstly you can factor out a 3

  2. rld613
    • 3 years ago
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    and then it becomes 3(x-4)^2

  3. rld613
    • 3 years ago
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    and 3x-12 can also be factored

  4. rld613
    • 3 years ago
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    3(x-4)

  5. rld613
    • 3 years ago
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    So from what I see in order to get the same denomanator you must multiply the denomanator and numerator by (x-4)

  6. rld613
    • 3 years ago
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    Did u get that so far

  7. neverforgetvivistee
    • 3 years ago
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    yes and i'm fixing it on my paper... stupid factoring mistakes Thanks!

  8. rld613
    • 3 years ago
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    ok gnite

  9. neverforgetvivistee
    • 3 years ago
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    after this problem goodnight

  10. neverforgetvivistee
    • 3 years ago
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    Do you multiply the numerator of the first fraction by 3(x-4)^4? This is where i messed up the most I was struggling with factoring because I'm half asleep if you were wondering why I took so long by the way...

  11. rld613
    • 3 years ago
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    nope you multiply the numerator and the denomanator of the first term by (x-4)

  12. neverforgetvivistee
    • 3 years ago
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    what about the 3?

  13. neverforgetvivistee
    • 3 years ago
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    because in the second fraction the denominator I get is 3(x-4)

  14. rld613
    • 3 years ago
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    well we already have a 3 in the denomanator of the first term

  15. rld613
    • 3 years ago
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    First term denomanator: 3(x-4) second term denomanator: 3(x-4) (x-4)

  16. rld613
    • 3 years ago
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    so all your missing in the first term is the (x-4)

  17. neverforgetvivistee
    • 3 years ago
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    how did you get rid of the 3?

  18. rld613
    • 3 years ago
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    I factored it

  19. rld613
    • 3 years ago
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    factor (3x-12) for me

  20. neverforgetvivistee
    • 3 years ago
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    3(x-4)

  21. rld613
    • 3 years ago
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    it is 3(x-4)

  22. rld613
    • 3 years ago
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    ya

  23. rld613
    • 3 years ago
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    so what doesn't make sense

  24. neverforgetvivistee
    • 3 years ago
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    when you're supposed to multiply everything by the denominator

  25. rld613
    • 3 years ago
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    nope we have two denomanators and we need them to be the same

  26. rld613
    • 3 years ago
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    so in order ofor 3(x-4) to be equal to 3(x-4)^2

  27. rld613
    • 3 years ago
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    we would have to multiply the first term by a (x-4)

  28. rld613
    • 3 years ago
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    so 3(x-4)*(x-4)=3(x-4)^2

  29. rld613
    • 3 years ago
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    Is that clear?

  30. neverforgetvivistee
    • 3 years ago
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    yes sort of , do we do that to the numerator too?

  31. rld613
    • 3 years ago
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    yup forsure

  32. neverforgetvivistee
    • 3 years ago
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    ooooooooooooooooooooooooooooohhhhhhhhhhhhhhhhhhhhhhhhhhhhhh ok I see I see

  33. rld613
    • 3 years ago
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    YAY i am so excited

  34. rld613
    • 3 years ago
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    I try to explain concepts but sometimes the person on the other end can't understand

  35. neverforgetvivistee
    • 3 years ago
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    THANK YOU OK I ACTUALLY SEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU OK LISTEN TO ME RIGHT NOW LOOK AT YOURSELF IN THE MIRROR AND SAY HELL YEAH IM AWESOME IM SO GOOD AT MATH THANK YOU OKAY BECAUSE I WAS REALLY STRUGGLING WITH THAT AND NOW I CAN FINALLY SLEEP

  36. neverforgetvivistee
    • 3 years ago
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    NOW IM GOING TO FINISH THIS PROBLEM AND GET THE RIGHT ANSWER!!!!!!!!!!

  37. rld613
    • 3 years ago
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    Oh thanks for the boost I needed that one!!! LOL

  38. neverforgetvivistee
    • 3 years ago
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    lol

  39. neverforgetvivistee
    • 3 years ago
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    someone give rld613 some more medals

  40. neverforgetvivistee
    • 3 years ago
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    i'm going to solve this problem right now afk

  41. rld613
    • 3 years ago
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    I am really not into the medal thing

  42. rld613
    • 3 years ago
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    I just enjoy doing math

  43. rld613
    • 3 years ago
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    its like past 2 am and I am still doing math equations!!! I shld be long in bed

  44. rld613
    • 3 years ago
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    K now that we finished i am going to bed

  45. neverforgetvivistee
    • 3 years ago
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    rld are you still there?

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