A community for students.
Here's the question you clicked on:
 0 viewing
morganalana17
 3 years ago
factoring
morganalana17
 3 years ago
factoring

This Question is Closed

dibauman
 3 years ago
Best ResponseYou've already chosen the best response.0Its the difference of cubes (since 216 is 6^3 and 1 is 1^3), so use the difference of cubes formula.

tcarroll010
 3 years ago
Best ResponseYou've already chosen the best response.0216x^3  1 = (6x)^3  1^3 Now, let 6x = a and let 1 = b a^3  b^3 = (a  b)(a^2 + ab + b^2) So, just substitute for the a and the b. Can you do this part?

tcarroll010
 3 years ago
Best ResponseYou've already chosen the best response.0@morganalana17 ? Can you do this last part?

tcarroll010
 3 years ago
Best ResponseYou've already chosen the best response.0Once you get the function factored as indicated above, the second factor (which is a quadratic in x) cannot befactored any further for real solutions so you will have only one real soultion (one place where the xaxis is crossed). The function will of course have 2 more solutions but those will be imaginary solutions. The graph looks like:

tcarroll010
 3 years ago
Best ResponseYou've already chosen the best response.0(6x  1)(36x^2 + 6x + 1)
Ask your own question
Sign UpFind 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
 Engagement 19 Mad Hatter
 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.