# Math Help - Polynomial Long Division

1. ## Polynomial Long Division

This just confuses me. I am asked to solve these division problems using long division. I know how to do them normally, but long division confuses me.

$\frac{x^3+2x^2+3x-6}{x-1}$

and

$\frac{n^3-27}{n-3}$

Any ideas?

2. Originally Posted by AlderDragon
This just confuses me. I am asked to solve these division problems using long division.

$\frac{x^3+2x^2+3x-6}{x-1}$

and

$\frac{n^3-27}{n-3}$

Any ideas?
first look at the first term in each divided and the divisor to see what is the number we multiply it with divided to give us the divisor then change the signs(or find the subtraction of them ) then find the sum like this

it is clear or not

3. Originally Posted by Amer
first look at the first term in each divided and the divisor to see what is the number we multiply it with divided to give us the divisor then change the signs(or find the subtraction of them ) then find the sum like this

it is clear or not
The picture is clear but it's still kind of confusing. I found a youtube video that explains it much clearer. Thanks anyway.

4. Originally Posted by AlderDragon
This just confuses me. I am asked to solve these division problems using long division. I know how to do them normally, but long division confuses me.

$\frac{x^3+2x^2+3x-6}{x-1}$

and

$\frac{n^3-27}{n-3}$

Any ideas?
Hi AlderDragon,

$\frac{n^3-27}{n-3}=$

Use zeros to hold the places for the terms that are left out.

Code:
          n^2 + 3n + 9
______________________
n - 3 | n^3 + 0n^2 + 0n - 27
(-) n^3 - 3n^2
------------
3n^2 + 0n
(-) 3n^2 - 9n
----------
9n - 27
(-)  9n - 27
========

5. Typo sorry