Question

Решить пример $sqrt{2}* sqrt{32}= 2^{ sqrt{13- x^{2} } }$

Answer 1

sgrt 64 = 2^sgrt(13-x^2);
2^sgrt(13 - x^2) = 8;
2^ sgrt(13 - x^2) = 2^3;
 sgrt(13 - x^2) = 3;
13 - x^2 = 3^2;
 - x^2 = 9 - 13;
 x^2 = 4;
 x = - 2;
 x= 2.