Question

ПОЖАЛУЙСТА СРОЧНО ПОМОГИТЕ

Answer 1

$\frac{x-9}{x+19}+\frac{x-19}{x+9}=0\\\\\frac{(x-9)(x+9)+(x-19)(x+19)}{(x+19)(x+9)}=0\\\\\frac{x^{2}-81+x^{2}-361}{(x+19)(x+9)}=0\\\\\frac{2x^{2}-442 }{(x+19)(x+9)}=0\\\\x\neq-9;x\neq-19\\\\2x^{2}-442=0\\\\x^{2}-221=0\\\\x^{2}=221\\\\x_{1,2} =\pm\sqrt{221}\\\\x_{1}*x_{2}=-\sqrt{221}*\sqrt{221}=-\sqrt{221^{2}}=-221 \\\\Otvet:\boxed{-221}    }$