# Math Help - What do I do to simplify this polynomial?

1. ## What do I do to simplify this polynomial?

4x^4-4x^2+1.

How do I simplify this one?
What really throws me is the whole +1 thing.

2. Originally Posted by quikwerk
4x^4-4x^2+1.

How do I simplify this one?
What really throws me is the whole +1 thing.
Hi quikwerk,

$4x^4-4x^2+1$

You might see if better if we

Let $u=x^2$

$4u^2-4u+1=(2u-1)(2u-1) \Longrightarrow (2x^2-1)(2x^2-1)=(2x-1)^2$

3. ## How do I simplify these polynomial fractions?

thanks!
That really helps! I think I see how that question works now!