[Blindmath] Help factoring a crazy trinomial

[Bente J. Casile]

If the answer is as you stated then the original problem should be x^4-2x^2+1

-----Original Message-----
From: Blindmath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of GianniP46
Sent: Wednesday, October 23, 2013 2:49 PM
To: Blind Math list for those interested in mathematics
Subject: [Blindmath] Help factoring a crazy trinomial

Hi all,
I need help factoring X^4-2X^2-1

I am thinking that there is a way of re writing this as a four termed expression where the product of the first and last terms must equal the product of the two middle terms, but I am stuck :( I know the answer is (X+1)(X-1)(X+1)(X-1) Feeling very dumb, any help would be appreciated THANKS lol

Gian Pedulla
Giannip46 at earthlink.net

LETS GO METS!
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