Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

happykiddo

  • one year ago

How is this factored::::: 125x^3-27=0 using the sum or difference of cubes to find the real or imaginary solutions

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

    difference of two cubes.

  2. Mertsj
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (5x)^3-(3)^3

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

    but what about the part where you plug it into the formula my real question is does the -3 stay negativ when plug-in her into the formula where the -b is

  4. campbell_st
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the general form is \[a^3 - b^3 = (a -b)(a^2 + ab + b^2)\] in your question a = 5x and b = 3

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

    thanks :) i wrote the formula wrong

  6. campbell_st
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    glad to help

  7. 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.