#1**0 **

You have to reverse the foil

That is all i can give you

it is a triple foil

example: (x+/-3)(x+/-3)(x+/-3)

SpawnofAngel Apr 14, 2014

#2**0 **

So we have

(2x^3 - x^2- 9x+18) \ (x-1)

Let's do some "long division" on this one...we have

2x^2 + x - 8

__________________x - 1 ) 2x^3 - x^2- 9x+18

2x*3 - 2x^2

_________________

x^2 - 9x

x^2 - x

_________

-8x + 18

-8x + 8

_______

10

So we have

2x^2 + x - 8 with a "remainder" of 10 / (x-1)

P.S.......I don't if this is gonna' line up correctly on this new website, but I did my best !!!

Chris Apr 14, 2014

#3**0 **

Let me try this again !!! (There is no "preview," so I can't tell what might happen!!)

2x^2 + x - 8

__________________

x - 1 ) 2x^3 - x^2- 9x+18

2x*3 - 2x^2

_________________

x^2 - 9x

x^2 - x

_________

-8x + 18

-8x + 8

_______

10

Chris Apr 14, 2014

#5**0 **

Re: (2x cube - x square- 9x+18) \(x-1)

the division sign is a round the wrong way. I assume that this is just a typo.

-------------------------------------------------

Hi Chris,

I see you have recovered your username. That is good.

Have you ever tried using synthetic division for polynomials. I'd have to look it up again but there is a couple of good you tube clips about with the method and it is much quicker. Maybe you would like to take a look. I usually do it your way because it is so ingrained in my head but like I said, the other way is quicker.

Melody Apr 15, 2014