Question

9/2n-6 -n^2/2n-6 решить

Answer 1

$frac{9}{2n - 6} - frac{n {}^{2} }{2n - 6} \ \ frac{9 - n {}^{2} }{2n - 6} \ \ frac{(3 - n) times (3 + n)}{ - 2( - n + 3)} \ \ frac{ 3 + n}{ - 2} \ \ - frac{ 3 + n}{2}$