Question

Сократить дробь
$\frac{x-3}{x^{2}-2x-3}$

Answer 1

(X-3)/ x*(x+1)-3*(x+1)=1/(x+1)

Answer 2

$\frac{x-3}{x^{2}-2x-3 } =\frac{x-3}{(x-3)(x+1)}=\frac{1}{x+1}$