Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

soccerbabe239

  • one year ago

factor 4y^2-9

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

    It is of the form a² - b² = (a + b)(a - b). Here: a² = 4y² and b² = 9. So if you can figure out a and b, you can factor it!

  2. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    would it be (4y+3)(4y-3) ?

  3. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Close, but not quite. 4*4 = 16.

  4. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[a^2 = 4y^2\]Take square root of both sides \[a=\sqrt{4y^2} = ?\]

  5. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh haha so it would be (2y+3)(2y-3)

  6. ZeHanz
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Right!

  7. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    By the way, learning to recognize difference of squares like this is an important trick in your bag of factoring tricks.

  8. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay! haha blonde moment! :)

  9. ZeHanz
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    We all have that once in a while!

  10. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haha this is my 6 th one today :/

  11. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    And whenever you think you've solved something, or factored it, it's not a bad idea at all to expand it out or plug in the solution and make sure that your answer works!

  12. ZeHanz
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You used them up for the whole week already!

  13. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Might have to wear a wig for a few days ;-)

  14. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haha thanks guys! and its natural I cant help it. and the wig wouldnt hide anything. honestly ive tried that and it didn't work:(

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

    Just learn to live with it ;)

  16. soccerbabe239
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haha I do! I just accept im a natural blonde but at least im not a bimbo!

  17. ZeHanz
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Good luck with your maths problems!

  18. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I have a friend who is a natural brunette, but she prefers to be blonde, and often pulls it off quite convincingly :-)

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.