Question

(-1/x^2)+(1/x) Cine ma ajuta la acest calcul

Answer 1

$-\dfrac{1}{x^2} +\dfrac{1}{x} = \\ \\ = -\dfrac{1}{x^2} + \dfrac{x}{x^2} = \\ \\ = \dfrac{-1+x}{x^2}= \\ \\= \dfrac{x-1}{x^2}$