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x^4-8x²+16 supra x³-2x²-4x-8

Răspuns :

Răspuns:

(x^2 - 4)^2/[(x^3 - 4x) - 2(x^2 - 4)] =

(x^2 - 4)^2/(x^2 - 4)(x-2) =

(x^2 - 4)/(x-2) =

(x-2)(x+2)/(x-2) =

x+2