Question

Помогите сократить дробь

Answer 1

$\frac {x+16}{\sqrt {-x}-4} \\ \frac {(x+16)(\sqrt {-x}+4)}{(\sqrt {-x}-4)(\sqrt {-x}+4)} \\ \frac {(x+16)(\sqrt {-x}+4)}{-x-16} \\ \frac {(x+16)(\sqrt {-x}+4)}{-(x+16)} \\ -(\sqrt {-x}+4) \\ -\sqrt {-x} -4$