Question

1/x^2+ x-2/x упростите выражение

Answer 1

$\frac{1}{ x^{2} + x }$ - $\frac{2}{x}$ = 
$\frac{1}{ x( x + 1) }$ - $\frac{2}{x}$ = 
$\frac{1 - 2(x+1)}{x (x+1)}$ =
$\frac{2x}{x (x+1)}$ = 
$\frac{2}{x+1}$