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Could you help and explain this to me please? I am really confused

Could you help and explain this to me please? I am really confused-example-1
User Ellice
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1 Answer

1 vote

\sqrt[]{72}=\sqrt[]{8\cdot9}=\sqrt[]{8}\cdot\sqrt[]{9}=\sqrt[]{4\cdot2}\cdot3=\sqrt[]{4}\cdot\sqrt[]{2}\cdot3=2\cdot3\cdot\sqrt[]{2}=6\sqrt[]{2}

the correct answer is A

User Brendan Wood
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