determine um radical com indice 8 que seja equivalente a √5
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n°=x
![\sqrt[8]{x} = \sqrt{5} \\ \\ ( \sqrt[8]{x} )^8=( \sqrt{5} )^8 \\ \\ x= \sqrt{5^8 } \\ \\ x=5^4 \\ \\ x=625 \sqrt[8]{x} = \sqrt{5} \\ \\ ( \sqrt[8]{x} )^8=( \sqrt{5} )^8 \\ \\ x= \sqrt{5^8 } \\ \\ x=5^4 \\ \\ x=625](https://tex.z-dn.net/?f=+%5Csqrt%5B8%5D%7Bx%7D+%3D+%5Csqrt%7B5%7D++%5C%5C++%5C%5C+%28+%5Csqrt%5B8%5D%7Bx%7D+%29%5E8%3D%28+%5Csqrt%7B5%7D+%29%5E8+%5C%5C++%5C%5C+x%3D+%5Csqrt%7B5%5E8+%7D++%5C%5C++%5C%5C+x%3D5%5E4+%5C%5C++%5C%5C+x%3D625)
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