Posted by **Bkp** on Sunday, May 15, 2011 at 10:18pm.

I need to write up how to find a greatest common factor in a polynomial. I am having a hard time doing so. Could someone help me please?

- Math -
**MathMate**, Sunday, May 15, 2011 at 11:12pm
Do you mean greatest common factor in *two* polynomials?

I would factor each one, circle the common factors, and multiply them together.

For example:

x^3-1 = (x-1)(x^2+x+1)

x^2-1 = (x-1)(x+1)

The only common factor is (x-1), so the GCF is (x-1).

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