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

This Question is Closed

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0The answer is 9, but I dont understand how to get it.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1@blahblah_who_cares Have you studied synthetic division or the Remainder Theorem?

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0No. Just synthetic. And I might have learned Remainder but I dont recall anything like it. .

dumbcow
 one year ago
Best ResponseYou've already chosen the best response.0for (x+2) evaluate f(2) to get remainder

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1We can do either here. I will post the Remainder Theorem so that you can tell me if you've ever seen it. Regardless, we will do the problem but will use the method you have studied. Tell me which method after you look at this remainder theorem. Remainder Theorem If a polynomial P( x) is divided by ( x – r), then the remainder of this division is the same as evaluating P( r), and evaluating P( r) for some polynomial P( x) is the same as finding the remainder of P( x) divided by ( x – r).

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0Yah. Ive never learned Remainder Theorem. @Directrix

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1We'll do synthetic division.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1P(x)=x^3+17 is divided by (x+2) P(x) = x^3 + 0x^2 + 0x + 17 divided by (x + 2) dw:1360114222669:dw

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Does that look familiar?

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0Ok. So i think my big question here is how to get the 2.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1dw:1360114478786:dw

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Consider this example: Example 1 Find P(–3) if P( x) = 7 x5 – 4 x3 + 2 x –11. There are two methods of finding P(–3). • Method 1: Directly replace –3 for x. • Method 2: Find the remainder of P( x) divided by [ x – (–3)].

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0No. I mean how did you get 2 from (x+2).

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1If the divisor is (x +2), for synthetic division, it is written as (x  (2)) which results in a divisor of (2).

blahblah_who_cares
 one year ago
Best ResponseYou've already chosen the best response.0Oh.. Ok. thanks.
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.