simplify √81
![simplify \: \sqrt[4]{81 - 8 \times \sqrt[3]{216} }](https://tex.z-dn.net/?f=simplify+%5C%3A++%5Csqrt%5B4%5D%7B81+-+8+%5Ctimes++%5Csqrt%5B3%5D%7B216%7D+%7D+ "simplify \: \sqrt[4]{81 - 8 \times \sqrt[3]{216} }")
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![\sqrt[4]{81 - 8 \times \sqrt[3]{216} } \\ = \sqrt[4]{81 - 8 \times 6} \: \: \: \: \: \: \: \: \: (since \: \sqrt[3]{216} = 6) \\ = \sqrt[4]{81 - 48} \\ = \sqrt[4]{33} \\ = 2.396](https://tex.z-dn.net/?f=+%5Csqrt%5B4%5D%7B81+-+8+%5Ctimes++%5Csqrt%5B3%5D%7B216%7D+%7D++%5C%5C++%3D++%5Csqrt%5B4%5D%7B81+-+8+%5Ctimes+6%7D++%5C%3A++%5C%3A++%5C%3A++%5C%3A++%5C%3A++%5C%3A++%5C%3A++%5C%3A++%5C%3A+%28since+%5C%3A++%5Csqrt%5B3%5D%7B216%7D++%3D+6%29+%5C%5C++%3D++%5Csqrt%5B4%5D%7B81+-+48%7D++%5C%5C++%3D++%5Csqrt%5B4%5D%7B33%7D++%5C%5C++%3D+2.396 "\sqrt[4]{81 - 8 \times \sqrt[3]{216} } \\ = \sqrt[4]{81 - 8 \times 6} \: \: \: \: \: \: \: \: \: (since \: \sqrt[3]{216} = 6) \\ = \sqrt[4]{81 - 48} \\ = \sqrt[4]{33} \\ = 2.396")
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hope this helped you
perfect ur asn is correct
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