Question

solve( -18x^3+17x+6)/(3x+2)

Answer 1

Minecraft.

Answer 2

so, do you know how to set this up? What have you tried so far?

Answer 3

So far I have tried FOIL and come up with a completely bizarre answer that isn't one of the answers.

Answer 4

ohk, so, this is called polynomial division or uhm, it has another name I forget at the moment

Answer 5

we set it up like long division from when we were little

Answer 6

so we have to use draw to make this look pretty so give me a moment to set it up, then it's pretty self explanitory

Answer 7

so now, we ask ourselves, what would I have to multiply 3x by to make it 18x^3?

Answer 8

can you tell me?

Answer 9

I believe it is 44?

Answer 10

44*3x=18x^3?

Answer 11

well when squared and then rooted yes.

Answer 12

that's a long division, we don't square and root, just multiply to make them equal

Answer 13

like literally (___)*3x=18x^3, fill in the blank

Answer 14

I squared like this: 18x * 18x * 18x
Then I divided by 3x and rooted the answer...

Answer 15

6x^2?

Answer 16

sorry if I wasn't clear, here this video will explain the process https://www.khanacademy.org/math/algebra2/polynomial_and_rational/dividing_polynomials/v/polynomial-division

Answer 17

yes 6x^2 was what I was fishing for

Answer 18

so now, we multiply (3x+1)(6x^2) then we subtract like long division it will look like this...

Answer 19

that's a plus

Answer 20

30x^5?

Answer 21

where did you get that?

Answer 22

Wait I see where this is going...

Answer 23

ok, now you see? It is just long division but your doing polynomials instead

Answer 24

6x^2+4x-3?

Answer 25

where did you get the 6x^2 from? and the 4x and the 3?

Answer 26

Division of powers and FOIL combined made the answer

Answer 27

noo, forget those for the moment

Answer 28

you don't use foil

Answer 29

nnor combine exponents, just adding and subtracting here

Answer 30

you're overthinking this

Answer 31

Oh I hate overthinking... have devious plans in mind for myself when I do that... >:)

Answer 32

uhm, ok, but anyways, o yourself a favor, watch the khanacademy video maybe two or 3 of them, then come back. It will make a heck of a lot more sense

Answer 33

kk thx for the reference :)

Answer 34

np, but seriously, watch it, then you'll be like ahhhhhhhhhhh I was over complicating it (I did the same thing when I learned this the first time, it made no sense till khan)