Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

kdarnell08

  • 2 years ago

solve the square root of 6x+1 = x-1

  • This Question is Open
  1. kdarnell08
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1358734970247:dw|

  2. CalebBeavers
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok so first square both sides to eliminate the square root

  3. kdarnell08
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what do you mean square both sides...

  4. CalebBeavers
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    like this \[\large \sqrt{6x+1}^{2}=(x-1)^{2}\] on the left hand side the square root and square cancel so youve got \[6x+1=(x-1)^{2}\]

  5. kdarnell08
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    k

  6. CalebBeavers
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok so now expand the right side

  7. kdarnell08
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    k

  8. satellite73
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you got this?

  9. CalebBeavers
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Whataya have after you expand the right side of the equation?

  10. CalebBeavers
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[6x+1=(x-1)^{2}\] \[6x+1=x^{2}-2x+1\] \[x^{2}-8x=0\] \[x(x-8)=0\] \[x=0 \] and \[x=8\] check for extraneous solutions \[\sqrt{6(0)+1}\neq 0-1\] \[\sqrt{6(8)+1}=8-1\] \[\sqrt{49}=7\] so solution is x=8

  11. 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.