[tex]a)\\\\\sqrt[3]{8000}-\sqrt[3]{125}-\sqrt[3]{729}=\\20-5-9=\\6\\\\b)\\\\\sqrt[3]{6^{3}+4^{3}+7*3^{2}}+\sqrt[3]{216}^{2}-\sqrt[3]{12*5+12*6+12*7}=\\ \sqrt[3]{216+64+7*9}+6^{2}-\sqrt[3]{60+72+84}=\\ \sqrt[3]{216+64+63}+36-\sqrt[3]{216}=\\ \sqrt[3]{343}+36-6=\\7+36-6=\\37[/tex]
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[tex]a)\\\\\sqrt[3]{8000}-\sqrt[3]{125}-\sqrt[3]{729}=\\20-5-9=\\6\\\\b)\\\\\sqrt[3]{6^{3}+4^{3}+7*3^{2}}+\sqrt[3]{216}^{2}-\sqrt[3]{12*5+12*6+12*7}=\\ \sqrt[3]{216+64+7*9}+6^{2}-\sqrt[3]{60+72+84}=\\ \sqrt[3]{216+64+63}+36-\sqrt[3]{216}=\\ \sqrt[3]{343}+36-6=\\7+36-6=\\37[/tex]