Descompune in factori:
8x la a patra - 2


Răspuns :

   
[tex]\displaystyle\\ 8x^4 -2 = 2(4x^4-1) =\\\\= 2(2x^2-1)(2x^2+1)=\boxed{2(x \sqrt{2} -1)(x \sqrt{2} +1)(2x^2+1)}[/tex]