Question

a raiz quarta de -625

Answer 1

a raiz quarta de -625
Não é possivel obter raiz quarta com radical negativo

Answer 2

$\sqrt[4]{-625}=\\\\\sqrt[4]{-1\times625}=\\\\\sqrt[4]{i^2\times5^4}=\\\\5\sqrt[4]{i^2}=\\\\\boxed{5\sqrt[2]{i}}$

Ou, $5\sqrt{i}$