Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

vivalakoda

Radicals help!

  • one year ago
  • one year ago

  • This Question is Closed
  1. elisichi
    Best Response
    You've already chosen the best response.
    Medals 2

    What can I help you with?

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

    (7+√2)(8-3√2)

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

    54+root2

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

    ^incorrect.

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

    I'm not necessarily looking for an answer, more of an explanation so I can understand the problem. Thank Arhin, anyway..

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

    Thanks*

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

    FOIL First Outer Inner Last \(\huge (a+b)(c+d) = ac+ad+bc+bd\)

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

    sorry typing mistake

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

    \[(7+√2)(8-3√2) = 54-21\sqrt{2}+ 8\sqrt{2} -(2)(3)=54-13\sqrt{2}-6 = 48-13\sqrt{2}\]Ok so what you do is you expand.

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

    @elisichi is rather50 −13√2

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

    ^whoops. my bad. 7 *8= 56. Youre right

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

    I think I understand now. Thank- you!

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

    No problem!

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

    @elisichi well done

    • one year ago
    • Attachments:

See more questions >>>

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.