Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Kuoministers

  • 2 years ago

can x^3 + 8 be factorised? if so it is using a3 + b3 = (a + b)(a2 – ab + b2)?

  • This Question is Closed
  1. backpack799
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (x-2)(x^2 + 2x + 4)

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

    But the question is x^3 + 8 not minus?

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

    yes, and your are correct,a=x and b=2

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

    *you

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

    Well i was looking to find it in factored from not the answer

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

    form*

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

    yeah, i didn't give any answer... factored form will be ... ?

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

    x^3+2^3 = (...+...)(....-....+...)

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

    Well the formula are as follows, \[a^3 + b^3 = (a + b)(a^2 – ab + b^2)\] \[a^3 - b^3 = (a - b)(a^2 + ab + b^2)\]

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

    (x+2)(x^2- 2 + 4) Is this right?

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

    the 2nd term in 2nd bracket is incorrect.

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

    i mean 2x opps (x+2)(x^2- 2x + 4)

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

    yeah, now correct....

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

    Yeah right

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

    thanks

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

    Your'e welcome.

  17. 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.