# Dividing polynomails help

• Apr 17th 2012, 02:25 PM
Capnzims
Dividing polynomails help
How would I solve this problem?

(16x^5+2x^4+x^3) / 4x
• Apr 17th 2012, 02:50 PM
skeeter
Re: Dividing polynomails help
Quote:

Originally Posted by Capnzims
How would I solve this problem?

(16x^5+2x^4+x^3) / 4x

$\frac{16x^5}{4x} + \frac{2x^4}{4x} + \frac{x^3}{4x}$

finish by dividing each term ...
• Apr 17th 2012, 02:57 PM
Capnzims
Re: Dividing polynomails help
so the answer is 4x^4+1/2x^3+x^2? Sorry to not understand.
How would I do this long division style?
• Apr 17th 2012, 03:13 PM
Capnzims
Re: Dividing polynomails help
I get it now sorry for being stupid.
Another question please with this one.

4x^3(2x^4+8x^3+12x^3)

I get x/2+2+3/x but my book says the answer is x/2+2(3/x) is it the same thing or?
• Apr 17th 2012, 03:36 PM
skeeter
Re: Dividing polynomails help
Quote:

Originally Posted by Capnzims
I get it now sorry for being stupid.
Another question please with this one.

4x^3(2x^4+8x^3+12x^3)

I get x/2+2+3/x but my book says the answer is x/2+2(3/x) is it the same thing or?

is this a division problem? looks like multiplication to me.
• Apr 17th 2012, 03:53 PM
Capnzims
Re: Dividing polynomails help
no that was a division problem.. this (2x^4+8x^3+12x^3)

divided by 4x^3.
• Apr 17th 2012, 04:13 PM
skeeter
Re: Dividing polynomails help
Quote:

Originally Posted by Capnzims
no that was a division problem.. this (2x^4+8x^3+12x^3)

divided by 4x^3.

note that $2x^4+8x^3+12x^3 = 2x^4 + 20x^3$

$\frac{2x^4 + 20x^3}{4x^3} = \frac{x}{2} + 5$

sure you copied it correctly?