Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Gabylovesyou

  • one year ago

5x^2 − 2x − 7 how do i factor that?

  • This Question is Closed
  1. ash2326
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Gabylovesyou did you try this?

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

    @ash2326 no... i dont know how to lol

  3. ash2326
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think you have asked quite a few questions similar to this.

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

    GABY?!

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

    WHAT?! lol

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

    @ash2326 can you help me with this one?

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

    @tywan wrong person lol :p

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

    Dont use FOIL, I can't believe FOIL is even used these days. Just "break up" the middle term

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

    |dw:1363899270806:dw|

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

    how did u get 5x^2 + 5x - 7x -7 ?

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

    what you do is break up the middle number into 2 numbers, the combinations can be infinite but among them, you choose 2 numbers which are multiples of each number at the corners

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

    hope that helped

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

    \[5x^2+5x-7x-7=0, 5x(x+1)-7(x+1)=0, (5x-7)(x+1)=0\] they way your gona split middle term should give the product of two end terms , like 7*5= 35 , so were gona split middle term in a way so that we can get 35, thats y we wrote -2x=-7x+5x

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

    take 5*7= will be 35 -7+5=-2 5x^2+5x-7x+7 group it 5x^2+5x common is 5x(x+1) -7x+7 common is 7 but pull out -1 -7(x+1) (5x-7)(x+1)

  15. 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.