a)
[tex]\frac{12+10\sqrt[3]{4}}{2}=\frac{2(6+5\sqrt[3]{4})}{2}=\boxed{6+5\sqrt[3]{4}}[/tex]
b)
[tex]3\sqrt[3]{3}+4\sqrt[3]{3}+5\sqrt[3]{-3}=3\sqrt[3]{3}+4\sqrt[3]{3}+5*(-\sqrt[3]{3})=3\sqrt[3]{3}+4\sqrt[3]{3}-5\sqrt[3]{3}=\boxed{2\sqrt[3]{3}}[/tex]
c)
[tex]\frac{24\sqrt[3]{20}}{6\sqrt[3]{-4}}=\frac{4\sqrt[3]{20}}{-\sqrt[3]{4}}=\frac{4\sqrt[3]{4}\sqrt[3]{5}}{-\sqrt[3]{4}}=4*(-\sqrt[3]{5})=\boxed{-4\sqrt[3]{5}}[/tex]
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a)
[tex]\frac{12+10\sqrt[3]{4}}{2}=\frac{2(6+5\sqrt[3]{4})}{2}=\boxed{6+5\sqrt[3]{4}}[/tex]
b)
[tex]3\sqrt[3]{3}+4\sqrt[3]{3}+5\sqrt[3]{-3}=3\sqrt[3]{3}+4\sqrt[3]{3}+5*(-\sqrt[3]{3})=3\sqrt[3]{3}+4\sqrt[3]{3}-5\sqrt[3]{3}=\boxed{2\sqrt[3]{3}}[/tex]
c)
[tex]\frac{24\sqrt[3]{20}}{6\sqrt[3]{-4}}=\frac{4\sqrt[3]{20}}{-\sqrt[3]{4}}=\frac{4\sqrt[3]{4}\sqrt[3]{5}}{-\sqrt[3]{4}}=4*(-\sqrt[3]{5})=\boxed{-4\sqrt[3]{5}}[/tex]