Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

sgta101

  • 2 years ago

Question in comments...plz help

  • This Question is Closed
  1. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok.

  2. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[a^4-29a^2+100<0\]

  3. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i really need an explanation or showing of work.

  4. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Holy chiznets. What type of math is this. Geometry, Triginometry, Calculus, Algebra, etc.

  5. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Algebra

  6. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 or 2

  7. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2

  8. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    quadratic inequalities

  9. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can't help you their. I'm just getting out of Geometry. I take Algebra II starting Tuesday. Sorry laddy.

  10. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it's okay, thanks for trying

  11. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I aced Algebra I though I know that much. In my day we didn't have all this fancy schmancy stuff(I'm only 14). I don't know nuttn bout dis der Aljero!

  12. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I gotta kick outta that

  13. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im 14 also...

  14. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i need to find the solution set of the inequality.

  15. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Will you give me a medal for trying?? :DD

  16. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Maybe...

  17. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Can you please solve the quadratic equation first? I mean to find that value of a when the equation is 0

  18. Hawk3ye
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Tehehe.

  19. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ya im pretty sure it's \[a^2-5a-2a+10\] After it's been factored it's \[(a-5)(a-2)(a-5)(a-2)\]

  20. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Not quite..

  21. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    No repeated factors in this case.

  22. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so just \[(a−5)(a−2)\] ?

  23. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    There are four factors :)

  24. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so \[(a−5)(a−2)(a+5)(a+2)\] ?

  25. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Bingo!

  26. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1358566081932:dw| So, the graph is like this (sorry for my poor drawing..) In what region does the function have a value less than 0?

  27. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    *regions

  28. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i think i got it from here. one more thing does \[(a^2-5a-2a+10)^2\] become \[(a^2-7a+10)(a^2-7a+10)\]?

  29. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Are you still working on the factorization part?

  30. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ya im making sure how i got the wrong answer.

  31. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i think i messed up in the factorization

  32. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[a^4 - 29a^2 +100\]\[=a^4 - 25a^2 - 4a^2 +100\]\[=a^2 (a^2-25) -4(a^2 - 25)\]\[=(a^2-4)(a^2-25)\]\[=(a-2)(a+2)(a^2-25)\]\[=(a-2)(a+2)(a-5)(a+5)\] The last two steps are just using the identity of difference of two squares. \(a^2-b^2 = (a+b)(a-b)\)

  33. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I don't know how you get this: \[(a^2-5a-2a+10)^2\]

  34. sgta101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks so much for this. :D

  35. RolyPoly
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You're welcome :)

  36. 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.