A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
What are the possible rational zeros of f(x) = 2x3 – 4x2 – 7x + 10 ?
± 1/2, ± 1, ± 2, ±5/2 , ± 5, ± 10
± 1, ± 2, ± 5, ± 10
1/2 , 1, 2, 5/2 , 5, 10
1, 2, 5, 10
anonymous
 4 years ago
What are the possible rational zeros of f(x) = 2x3 – 4x2 – 7x + 10 ? ± 1/2, ± 1, ± 2, ±5/2 , ± 5, ± 10 ± 1, ± 2, ± 5, ± 10 1/2 , 1, 2, 5/2 , 5, 10 1, 2, 5, 10

This Question is Closed

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0this applies to the rational root thrm that takes a pool of options from the factors of the last number divided by the factors of the first

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.2the factors of the constant are called p factors of the coefficient of the leading term are q the possible roots are p/q

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i still dont understand

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0you need to be able to determine the first and last numbers to begin with :) can you tell me what they are?

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0also, proper form has the + tags, so that narrows it down to the first 2 options

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.2ok... so the factors of 10 are 1 x 10 or 1 x 10, 2 x 5 or 2 x 5 (called p) the factors of 2 are 1 x 2 or 1 x 2 (called q) so if you use p/q for the roots you will have 1/1, 1/1 1/1 and 1/1, then 10/1, 10/1, 10/1 and 10/1, 1/2, 1/2, 1/2, 1/2 etc... this gives all the possible rational roots
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.