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

This Question is Closed

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

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

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

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

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.0Check 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

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

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

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

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

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

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

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

.Sam.
 4 years ago
Best ResponseYou've already chosen the best response.1@Firejay5 the remainder is 60

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

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

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

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

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

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

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

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

.Sam.
 4 years ago
Best ResponseYou've already chosen the best response.1don'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.

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

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.0a 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)

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

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

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