Question

Вычислить : √19+√37*√19-√37

Answer 1

$\sqrt{19+ \sqrt{37} } * \sqrt{19-\sqrt{37}} = \sqrt{(19+ \sqrt{37})*(19-\sqrt{37})} = \\ = \sqrt{19^2- (\sqrt{37})^2 } = \sqrt{361-37} = \sqrt{324} =18$

Ответ: $18$

Answer 2

(V19+V37)*(V19-V37)=19-37=-18