A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1Well in this situation the best thing to do would be to simplify it.. into factors. then you have ranges of test cases to test whether a number is positive in that range

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0is it \[ f(x)=x^35x^22x+24\]

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0did you factor? once you have the three zeros, because this is a third degree polynomial with positive leading coefficient you know it will be negative, then positive, then negative, then positive

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1353208613053:dw

madelyn97
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1353208683477:dw

madelyn97
 2 years ago
Best ResponseYou've already chosen the best response.0but that doesnt work right?

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1hmm i can factor this one out give me a second

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1I think what you meant to do was \[(x+2)(x3)(x4)\]

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1This gives you the ranges of \[(\infty, 2) : (2,3) : (3,4) :( 4,\infty)\]

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1Then you can just plug a number from each of those ranges in between and just look at the sign.

Freyes
 2 years ago
Best ResponseYou've already chosen the best response.1That'll tell you if it's in the positive range or not
Ask your own question
Ask a QuestionFind 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.