Question

calcule as operacoes com radicais:
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Answer 1

Explicação passo-a-passo:

c)

$\sf 3\sqrt[3]{2}-7\sqrt[3]{2}-6\sqrt[3]{2}$

$\sf =-4\sqrt[3]{2}-6\sqrt[3]{2}$

$\sf =\red{-10\sqrt[3]{2}}$

d)

$\sf \sqrt{15}\cdot\sqrt{6}$

$\sf =\sqrt{90}$

$\sf =\sqrt{9\cdot10}$

$\sf =\red{3\sqrt{10}}$

e)

$\sf 3\sqrt[5]{6}\cdot4\sqrt[5]{5}$

$\sf =3\cdot4\sqrt[5]{6\cdot5}$

$\sf =\red{12\sqrt[5]{30}}$

f)

$\sf \sqrt[3]{128}\div\sqrt[3]{2}$

$\sf =\sqrt[3]{128\div2}$

$\sf =\sqrt[3]{64}$

$\sf =\red{4}$

g)

$\sf \sqrt{8}\div\sqrt{2}$

$\sf =\sqrt{8\div2}$

$\sf =\sqrt{4}$

$\sf =\red{2}$