A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Any idea?

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @mathmate Hello. This one is tough one for me! PLease help

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @wrik003

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2 solutions... x = 3 and x = 2... do u need a detailed explanation as before?

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh yes please! If anyone who have different idea please let me know

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hold on a minute

  7. mathmate
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Find common denominator, subtract, and cross multiply to give the quadratic equation x^2-5x+6=0, or (x-3)(x-3)=0. However, check the two solutions x=2 or x=3 by substituting into the original equation. \(One\) of them gives a zero for denominator, hence is not a solution.

  8. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes - the one that is not a solution is called extraneous.

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So I'm correct?

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @mathmate @welshfella

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    only 3 is a solution... I was wrong; a bit!

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So, can you tell me which one is correct? @welshfella @mathmate

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I'm lost!!!

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    workout:

    1 Attachment
  15. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now plugging 2 into the original equation leads to infinity - infinity; which is absurd. but 3 gives a correct solution. check for it in the same way as for 2

  16. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    there's an error in your last line multiplying through by (x-2)(x+2) gives (x-2)(x+2) on right hand side

  17. mathmate
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    @KittyT You have to do some work too! lol Read through my response and do some checking, and you will find your answer AND also understand why. OR read the last posts of @wrik003 to find the answer! Good luck!

  18. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it should be 5(x + 2) - 20 = x^2 - 4

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I got 2 solutions....

  20. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what are they/

  21. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x=3 and x=2

  22. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    u are stating something as exact as mine @welshfella. the only difference being that u have cross-multiplied x^2 -4 with 1! Hope u get it!

  23. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @KittyT check my 2nd last post & u shall find the answer

  24. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    is it your workout?

  25. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think there's one solution which is x=3

  26. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes... whose else's workout could it be? my local time right now is 23:42! how do u suppose I'll get external; help?!

  27. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So it's right?

  28. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes... my workout is correct... as verified my @mathmate.

  29. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So my final answer is 1 solution only!

  30. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes... correct

  31. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.