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Firejay5
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Simplify. Use long division to solve. Subtract your answers, NOT add
10. (x^3 + 13x^2  12x  8) / (x + 2)
 2 years ago
 2 years ago
Firejay5 Group Title
Simplify. Use long division to solve. Subtract your answers, NOT add 10. (x^3 + 13x^2  12x  8) / (x + 2)
 2 years ago
 2 years ago

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Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
My answer is 72, but I don't know what to do next
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
https://www.youtube.com/watch?v=l6_ghhd7kwQ watch this video
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Setup the long division as follows, solve by dividing . (x^3 + 13x^2  12x  8) with (x + 2)
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
it teaches you long division of polynomials
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
Check alternative forms to see if your answer is correct https://www.wolframalpha.com/input/?i=%28x^3+%2B+13x^2++12x++8%29+%2F+%28x+%2B+2%29
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
what ever remainder you have left you have to keep it divided by x + 2
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
I know how to do it, it's just I don't know if I put it over x + 2 > \[\frac{ x + 2 }{ 72 }\]
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
What do you have for your long division?
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
x+2 remains in the denominator and it should be 60
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
I'm pretty sure based on wolfram alphas answer
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
@.Sam. so far
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
The answer goes withdw:1351049782957:dw
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
I know that; it's just I need help with where the 72 goes and @Australopithecus it's not 60
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
@Firejay5 the remainder is 60
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
No it's not it's 72 I did my work
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Try check your work with this,
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
when you subtract; it's like you're distributing  into the second equation http://assets.openstudy.com/updates/attachments/50875f3ae4b058e80cf64652.sam.13510501095142.png
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
Like when you are subtracting 11x^2  12x  (11x^2 + 22x)
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
you are are trying to cancel and get rid of the 11x^2
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
yes, then you get 34 x
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
It should be 34x  8  (34x + 68)
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
34 x 2 = 68
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
its not +68 but its 68
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
what's 8  68
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
You should be careful there, its actually 8(68)
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
Are you getting confused??? @.Sam.
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
don't memorize the facts, just remember that it is top minus the bottom, you look back the previous steps, all you do is to subtract the top one with the bottom one, the steps that I gave you is computer generated, its completely true.
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
you have to apply the negative (34x + 68) to all number s in parentheses
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
a remainder is just part of the equation that you cannot divide, so it is left with the denominator so in your case 60/(x+2)
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
The actual answer is 60, why are you ignoring it? Take a look at the picture below.
 2 years ago

Australopithecus Group TitleBest ResponseYou've already chosen the best response.0
I'm basing my 60/(x+2) on the wolfram alpha simplification
 2 years ago

Firejay5 Group TitleBest ResponseYou've already chosen the best response.0
It's not 34x  68 it's (34x + 68) the minus/negative in front of the parentheses goes with everything in it
 2 years ago
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