Question

calcule$3 \sqrt{x} -216$

Answer 1

$\sqrt[3]{x} - 216 \\ \\ \sqrt[3]{x} = 216 \\ \\ \sqrt[3]{x} = 6^{3} \\ \\ x^{ \frac{1}{3} } = 6^{3} \\ \\ x = \sqrt[3]{6^{3}} \\ \\ x = 6$

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