Question

Exercício 35.. Qual o Resultado?

Obs : Já Tentei de Várias formas

Answer 1

^3 √18 + √84 - √4 + √25
^3 √18 + √84 - √4 + 5
^3 √18 + √84 - √9
^3 √18 + √84 - 3
^3 √18 + √81
^3 √18 + 9
^3 √27
3

Espero ter ajudado.

Answer 2

$\sqrt[3]{18+\sqrt{84-\sqrt{4+\sqrt{25}}}}=\\\\\sqrt[3]{18+\sqrt{84-\sqrt{4+5}}}=\\\\\sqrt[3]{18+\sqrt{84-\sqrt{9}}}=\\\\\sqrt[3]{18+\sqrt{84-3}}=\\\\\sqrt[3]{18+\sqrt{81}}=\\\\\sqrt[3]{18+9}=\\\\\sqrt[3]{27}=\\\\\sqrt[3]{3^3}=\\\\\boxed{3}$