Question

решите срочно надо 39,7 (1,2)
1и 2 решите

Answer 1

$1) = \frac{ {x}^{2} - 19 + 10}{x - 3} = \frac{ {x}^{2} - 9 }{x - 3} = \frac{(x - 3)(x + 3)}{x - 3} = x + 3$
$2) = \frac{y + 7 - 2y - 2}{ {y}^{2} - 25} = \frac{ - y + 5}{ {y}^{2} - 25 } = - \frac{y - 5}{(y - 5)(y + 5)} = - \frac{1}{y + 5}$