Need help with a factorisation question (1 Viewer)

[Ryu_Hayabusa]

Hi everyone,

I am having trouble factoring this:

(a^2-b^2-c^2)^2-4*b^2*c^2

I had a look on WolframAlpha but it doesn't really show how it reached the result. Any help would be great.

Cheers

 

[gr_111]

use difference of squares... (x^2-y^2) = (x+y)(x-y)

 

[steero1]

bracket the a^2-b^2 together than use difference of 2 squares.