Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

JaneDoe100

  • 2 years ago

help! use the quadratic formula to solve x²+3=-4x

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

    x^2+4x+3 = 0 (x+1) (x+ 3) = 0 then x = -1 or x = -3

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

    no no use quadratic formula to solve @gerryliyana

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

    do you know what the quadratic formula is? or are you asking for that.

  4. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i know what it is but i still dont know how 2 get the answer...

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

    set up equation so that you have: ax^2+bx+c=0 and use a, b and c correctly in your formula

  6. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    x²+4x+3=0?

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

    so a=?,b=?, and c=?

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

    yess ur all right

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

    smart boy!!

  10. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    a=o b=4 c=3

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

    nooo

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

    a = 1, b=4, c=3

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

    yes

  14. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry i wasnt thinking

  15. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so now what?

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

    use \[x = \frac{ -b \pm \sqrt{(b^{2} - 4ac)} }{ 2a }\]

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

    substitute all parameter, including a, b, and c

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

    to solve x²+4x + 3 =0 you should find the value of x, one way to do this by using formula above ...,

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

    \[x = \frac{ -b \pm \sqrt{b^{2}-4ac} }{ 2a }\] \[x = \frac{ -4 \pm \sqrt{4^{2}-(4)(1)(3)} }{ 2(1) }\]

  20. JaneDoe100
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok

  21. JaneDoe101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks both of you!

  22. 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.