B 2. Thực hiện phép tínha)\(\dfrac{\sqrt[3]{384}}{\sqrt[3]{3}}\)+\(3\sqrt[3]{-54}\)+\(\sqrt[3]{432}\) b)\(2\sqrt[3]{24}-5\sqrt[3]{81}+4\sqrt[3]{192}\)c)\(\sqrt[3]{-343}.\sqrt[3]{3}+\sqrt[3]{81}-2\sqrt[3]{-24}\) ...
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B 2. Thực hiện phép tính
a)\(\dfrac{\sqrt[3]{384}}{\sqrt[3]{3}}\)+\(3\sqrt[3]{-54}\)+\(\sqrt[3]{432}\) b)\(2\sqrt[3]{24}-5\sqrt[3]{81}+4\sqrt[3]{192}\)
c)\(\sqrt[3]{-343}.\sqrt[3]{3}+\sqrt[3]{81}-2\sqrt[3]{-24}\) d)\(8\sqrt[3]{5}-5\sqrt[3]{40}+10\sqrt[3]{\dfrac{1}{125}}\)
a: \(=4\sqrt[3]{2}-9\sqrt[3]{2}++6\sqrt[3]{2}=\sqrt[3]{2}\)
b: \(=6\sqrt[3]{3}-15\sqrt[3]{3}+16\sqrt[3]{3}=7\sqrt[3]{3}\)
c: \(=-7\sqrt[3]{3}+3\sqrt[3]{3}+6\sqrt[3]{3}=2\sqrt[3]{3}\)
d: \(=8\sqrt[3]{5}-10\sqrt[3]{5}+2=-2\sqrt[3]{5}+2\)