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

EmmaH Group Title

Factor the trinomial: 3x2 - 7x - 6 (3x + 2)(x - 3) (3x - 2)(x + 3) (3x - 1)(x - 6) (3x + 1)(x - 6)

  • one year ago
  • one year ago

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

    please shown steps im really lost:(

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

    ok.... here is my method for a quadratic \[ax^2 + bx + c\] multiply a * c in your question its 3 and - 6 3*-6 = -18 find the factors of - 18 that add to -7..... -9, 2 then do this |dw:1360006656091:dw|

    • one year ago
  3. mathstudent55 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    A similar method is below: In a polynomial ax^2 + bx + c, find the product ac In your case, 3x^2 - 7x -6, that woud be 3(-6) = -18 Now find two factors of ac that add up to the middle coefficint, b In this case, find two factors of -18 that add up to -7 They are -9 and 2, since -9 * 2 = -18 and -9 + 2 = -7 Nowe break up the middle term, bx, into those two parts In this case it's 3x^2 - 7x - 6 = 3x^2 - 9x + 2x - 6 Now factor by parts: Factor a common factor out of the first two terms, and a common factor out of the last two terms: 3x(x - 3) + 2(x - 3) Now factor out the common factor, (x - 3) (x - 3)(3x + 2)

    • one year ago
  4. timo86m Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Use wolfram alpha

    • 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.