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Mathematics 22 Online
OpenStudy (anonymous):

what is r when 4x^3+2x^2-18x+38 divided by x+3

OpenStudy (zepp):

Perform a long division to find R

OpenStudy (anonymous):

but what is r supposed to be? or do i just ignore it and divide those two ?

OpenStudy (anonymous):

@iluvvyyhu , Did you mean this instead? "what is x when 4x^3+2x^2-18x+38 divided by x+3"

OpenStudy (anonymous):

no its r lol thats why im unsure

OpenStudy (anonymous):

There is no r in the expression so it'd be either undefined or zero depending on conditions, @zepp , but I think you meant to say x in which case @zepp is correct and I'll leave this to him. :-)

OpenStudy (zepp):

http://puu.sh/Ekcm

OpenStudy (anonymous):

You're certain it says r? And there's no additional information?

OpenStudy (zepp):

No, r is what's left when you perform the division

OpenStudy (zepp):

Like \(5 \div 2=2, ~~R=1\)

OpenStudy (anonymous):

Ah r = remainder, not variable "r".

OpenStudy (zepp):

Yes.

OpenStudy (anonymous):

Might help to specify that in the future, I was reading too literally. :-P

OpenStudy (anonymous):

ohhh my bad i didnt even know thats what they ment im sorry, but thanks(:

OpenStudy (anonymous):

The remainder is simply what's left over @iluvvyyhu , divided by your divisor (what you're dividing by in the first place)

OpenStudy (anonymous):

Yeah it helps to be precise around here @iluvvyyhu :-D Because there's a lot of crazy types of challenge question floating around here, somebody might just ask that. Especially with the people who ask for mathematical proofs and such.

OpenStudy (anonymous):

Parenthesis around polynomial fractions, ^ symbols to denote exponents, that kind of thing. Here I'll give you an example of what I'm talking about from just a moment ago:

OpenStudy (anonymous):

Here ya go @iluvvyyhu : http://openstudy.com/study#/updates/4fec8479e4b0bbec5cfc0dc3 See what I mean? :-D

OpenStudy (anonymous):

ohhh yeah okay(: thanks i got it now(:

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