Tính \(S = {x^3} + 12x – 8\) khi \(x = \sqrt[3]{{4 + \sqrt {80} }}\, – \sqrt[3]{{\sqrt {80} – 4}}\) A \(S = 0\). B \(S = 1\). C \(S = 2\). D \(S = 3\).
Tính \(S = {x^3} + 12x – 8\) khi \(x = \sqrt[3]{{4 + \sqrt {80} }}\, – \sqrt[3]{{\sqrt {80} – 4}}\) A \(S = 0\). …