# Simplyfying help!

• Oct 18th 2007, 07:34 AM
FalconPUNCH!
Simplyfying help!
This is taking me more than an hour to simplify and I think I did it wrong. Also can someone give me tips on how to simplify without getting it too messy?

10(2x + 1)^4(x^3 - x + 1)^4 + 4(2x + 1)^3(x^3 - x + 1)^3(3x^2 - 1)

can a mod move this to the urgent homework help forum please
• Oct 18th 2007, 07:53 AM
Krizalid
Quote:

Originally Posted by FalconPUNCH!
\$\displaystyle 10(2x + 1)^4(x^3 - x + 1)^4 + 4(2x + 1)^3(x^3 - x + 1)^3(3x^2 - 1)\$

It's not hard. Note that \$\displaystyle 2x+1\$ and \$\displaystyle x^3-x+1\$ are common factors, so all you need to do it is to factorise that expression.
• Oct 18th 2007, 08:01 AM
FalconPUNCH!
Quote:

Originally Posted by Krizalid
It's not hard. Note that \$\displaystyle 2x+1\$ and \$\displaystyle x^3-x+1\$ are common factors, so all you need to do it is to factorise that expression.

Eh I tried and I got a mess and now I'm confused...this is where I am right now

(2x + 1)^3(x^3 - x + 1)^3(10(2x +1)(x^3 - x + 1) + 4(3x^2 - 1))
• Oct 18th 2007, 02:58 PM
FalconPUNCH!
Quote:

Originally Posted by FalconPUNCH!
Eh I tried and I got a mess and now I'm confused...this is where I am right now

(2x + 1)^3(x^3 - x + 1)^3(10(2x +1)(x^3 - x + 1) + 4(3x^2 - 1))

anyone =(
• Oct 18th 2007, 03:07 PM
Jonboy
as i can see, you have simplified the expression correctly. :)