求解 3sqrt{72} | Microsoft Math Solver

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3\times 6\sqrt{2}

因式分解 72=6^{2}\times 2。将乘积 \sqrt{6^{2}\times 2} 的平方根重写为平方根 \sqrt{6^{2}}\sqrt{2} 的乘积。取 6^{2} 的平方根。

18\sqrt{2}

将 3 与 6 相乘，得到 18。

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