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

razor99

Factorize

  • one year ago
  • one year ago

  • This Question is Closed
  1. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    81a^2-100

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

    (9a+10)(9a-10) Its difference of squares

    • one year ago
  3. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    yep

    • one year ago
  4. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    swissgirl

    • one year ago
  5. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    @swissgirl

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

    so you got it?

    • one year ago
  7. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    could u tell me the steps

    • one year ago
  8. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    i mean could u show it

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

    I realized that we were missing the middle term Usually the equation is in the form \(ax^2+bx+c\) In this case the equation was in this form \(ax^2+c\) it was missing the bx So that means its difference of squares meaning that middle term canceled out

    • one year ago
  10. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    oh i get it thanx pippa u are a life saver

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

    I am back should i finish off explaining or did u get it?

    • one year ago
  12. razor99
    Best Response
    You've already chosen the best response.
    Medals 0

    could u finish it

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

    So anyways it is in the form \(a^2-b^2=(a-b)(a+b)\) \(81x^2-100=(9x-10)(9x+10)\) In this case our a=9x and b=10 So \(a^2=(9x)^2=81x^2 \text{ and } b^2=(10)^2=100\)

    • 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.