A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Please Help! I Need Explanation & Help On How To Do This!!!! Medal and Fan?!?!

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

    √(8x+1)=5

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

    i need to solve for x and identify if it is an extraneous solution.

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

    Is it \(\huge \sqrt{8x+1}=5\) ?

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

    yes

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

    \(\huge (\sqrt{8x+1})^2=(5)^2\)

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

    where did you get the power of 2?

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

    So you square both sides to remove the radical sign.

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

    ohhhh nvm wait

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

    i understand why lol

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

    It would now be: \(\huge 8x+1=25\)

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

    so x equals 3??

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

    Yes! To check if it's an extraneous solution, plug in \(\huge x=3\) to the equation.

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

    \(\huge \sqrt{8(3)+1}=5; x=3 \)

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

    whats the difference between non extraneous and extraneous?

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

    extraneous: not a real solution non extraneous: real solution / the x/root is true

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

    \(\huge \sqrt{24+1}=5\) \(\huge \sqrt{25}=5\) Is this true?

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

    yeah

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

    ok thank you so much!!!

  19. 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.