Posted by **Jen** on Wednesday, January 31, 2007 at 1:42pm.

how to factor

x^4 - 2x^3 - 8x + 16

Thanks.

you can factor by grouping wich is to divide the equation into two pieces

1)x^4-2x^3 -8x+16

2)now factor this two

x^3(x-2)-8(x-2)

3)you will get x^3-8 and x-2

4)factor x^3-8

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