Question

heyy...spuneti mi va rog cum se rezolva...

Answer 1

x(x²–2) supra (x²–2)²
se simplifica x²–2 cu x²–2
=x supra x²–2

Formula de calcul prescurtat:
(x+y)²=x²+2xy+y²

Answer 2

$\frac{x^3-2x}{x^4-4x^2+4}= \frac{x( x^{2} -2)}{( x^{2} -2)^2} = \frac{x}{ x^{2} -2}$