Rewrite the rational expression x3+5x2+3x−10x+4 in the form q(x)+r(x)b(x).

Question

specek18 · Answer

here are the options, will give medal please help
A. (x2+5x+3)+-10x3+5x2+3x−10
B. (x2+x−1)+-6x3+5x2+3x−10
C. (x2+5x+3)+-10x+4
D. (x2+x−1)+-6x+4

specek18 · Answer

sorry don't know why they showed up that way.

driftracer305 · Answer

yea...try again

specek18 · Answer

Rewrite the rational expression x3+5x2+3x−10x+4 in the form q(x)+r(x)b(x).
(x2+5x+3)+-10x3+5x2+3x−10
(x2+x−1)+-6x3+5x2+3x−10
(x2+5x+3)+-10x+4
(x2+x−1)+-6x+4

specek18 · Answer

don't know why they're showing up that way:(

specek18 · Answer

attachment

specek18 · Answer

there's a screenshot lol

aum · Answer

Use synthetic division to divide (x^3 + 5x^2 + 3x - 10) by (x + 4).
The quotient will be q(x)
The remainder will be r(x)
The divisor is b(x) and is (x + 4).

specek18 · Answer

i don't understand what you did.....what option would that be?

driftracer305 · Answer

oooh they are dividing...ok pic is much better

aum · Answer

Here is a good tutorial on synthetic division: http://www.youtube.com/watch?v=bZoMz1Cy1T4

specek18 · Answer

thank you @aum i understood/ was able to do the other problems, but i don't see what you were saying the final answer was. and i am watching now:)

specek18 · Answer

@driftracer305 did you understand what @aum did?

driftracer305 · Answer

yup

aum · Answer

I was NOT giving you the final answer.
Do the synthetic division first.
The answer will become clear after that or I can explain later.
Can you do the synthetic division part and tell me what you get?

driftracer305 · Answer

synthetic is basically short for long division method

specek18 · Answer

makes a lot more sense @aum i am working it out now. ill let u know in two sec

driftracer305 · Answer

@aum ...let her do long division method if she knows that..probably not synthetic...

specek18 · Answer

wait...does the (q) stand for quotient? sorry kinda confused

driftracer305 · Answer

yes ma'am

specek18 · Answer

thank you sir:)

driftracer305 · Answer

my pleasure.. :)

specek18 · Answer

okay so...in the image i posted, i am getting d...

aum · Answer

You have the correct answer!

specek18 · Answer

:) i'm kinda proud of myself thank you to everyone for your help

aum · Answer

you are welcome.

driftracer305 · Answer

aah....late here...but good answer..its D...  lol  the pic name thou...  :D :D :D