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

rodzz Group Title

how to do quadratic functions pls xplain?

  • 2 years ago
  • 2 years ago

  • This Question is Open
  1. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok so there are 3 ways to solve a quadratic equation: 1. factor 2. quadratic equation 3. complete the square

    • 2 years ago
  2. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    a quad usually in the form ax^2 + bx + c = y c is any number and a and b are the coefficients of x

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

    6x2 + 9x=? how to do?? i want xplaination ? can u pls elp? :)

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

    ?

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

    How to solve for x you mean? :o Or likeeee, how to graph and all that jazz? :D

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

    ya for x!

    • 2 years ago
  7. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok here's an example : x^2 + 5x + 6 = 0 one way to solve is to see what 2 numbers when multiplied equal 6, and when added equal 5. well 2x3=6, and 2+3 = 5 so this equation can also be written as x^2 + 2x + 3x + 6 = 0 now, we can factor it : x(x+2) + 3(x+2) = 0 and now we have (x+2) two times. in other words, both terms have an (x+2) in common so we can factor that out aswell: (x+2) (x+3) = 0 here, since multiplying these two together results in 0; that means either one of these can equal 0. because if you multiply a number by 0, you get 0, what i'm saying is: x+2 = 0, x+3=0 so then x=-2, x=-3 quadratic equations always have 2 answers.

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

    Wow i didn't think you were going to say anything, you were writing for like 10 minutes lol.

    • 2 years ago
  9. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    hahaha yeah i backspaced a bunch of stuff and started over

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

    thnXXX :D

    • 2 years ago
  11. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    oh that actually made sense? lol ok

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

    wht do ya mean by tht? :O

    • 2 years ago
  13. joshi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    oh nothing i just thought my explanation might have been confusing

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

    :P lol

    • 2 years 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.