Homework Help: factoring

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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