Question

efetue

a)
$(9 + \sqrt{17} ) \: .(9 - \sqrt{17} ) =$
b)
$( \sqrt{5 - \sqrt{3} } ) {}^{2}$
c)
$\sqrt[3]{108} \div \sqrt[3]{3} =$
D)
$\sqrt[3]{a {}^{7}b {}^{2} } \div \sqrt[3]{a {}^{3} b} =$
​

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{a)\:(9 + \sqrt{17}).(9 - \sqrt{17}) = 81 - 17 = 64}$

$\mathsf{b)\:(\sqrt{5 - \sqrt{3}})^2 = 5 - \sqrt{3}}$

$\mathsf{c)\:\sqrt[3]{108} \div \sqrt[3]{3} = \sqrt[3]{36}}$

$\mathsf{d)\:\sqrt[3]{a^7b^2} \div \sqrt[3]{a^3b} = \sqrt[3]{a^4b}}$