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blahblah_who_cares
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Find the remainder if P(x)=x^3+17 is divided by (x+2).
 one year ago
 one year ago
blahblah_who_cares Group Title
Find the remainder if P(x)=x^3+17 is divided by (x+2).
 one year ago
 one year ago

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

blahblah_who_cares Group TitleBest ResponseYou've already chosen the best response.0
@DarthTony
 one year ago

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

blahblah_who_cares Group TitleBest ResponseYou've already chosen the best response.0
I have.
 one year ago

Directrix Group TitleBest ResponseYou've already chosen the best response.1
Remainder Theorem?
 one year ago

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

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

Directrix Group TitleBest ResponseYou've already chosen the best response.1
We 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).
 one year ago

Directrix Group TitleBest ResponseYou've already chosen the best response.1
@blahblah_who_cares
 one year ago

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

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

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

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

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

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

Directrix Group TitleBest ResponseYou've already chosen the best response.1
Consider 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)].
 one year ago

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

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

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