Question

Производная (х^3+8)/х

Answer 1

$y= \frac{x^3+8}{x}$
$y'= \frac{3x^2*x-(x^3+8)}{x^2} = \frac{3x^3-(x^3+8)}{x^2} = \frac{3x^3-x^3-8}{x^2} = \frac{2x^3-8}{x^2}$