5x3 + 6x + 8 by x + 2
use synthetic division

Question

5x3 + 6x + 8 by x + 2
use synthetic division

shayaan_mustafa · Answer

Hi tjdenerson :) 

Welcome again :)

anonymous · Answer

hey

shayaan_mustafa · Answer

First we have to separate coefficients of the polynomial like this.
$$\large 5x^3+0x^2+6x+8$$
separate coeffiecients
$$\large 5 \space0\space6\space\text{and}\space8$$

As you can see x^2 term in the question was missing. So I have added it with 0 coefficient. Right?

shayaan_mustafa · Answer

Now as we have given x+2 as a factor to divide with
So
x+2=0
from here
x=-2

Now we have -2 by which we will divide.

anonymous · Answer

that wasnt one of my choices did u use synthetic dicicion

shayaan_mustafa · Answer

Yes I am using synthetic division. In this division we have to divide with coefficients of polynimial not with the actual polynomial.

anonymous · Answer

oh ....thanks  beautiful

shayaan_mustafa · Answer

So should I continue?

anonymous · Answer

yeah

shayaan_mustafa · Answer

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