Question

$\sqrt{40 + \sqrt{9 \sqrt{81} } }$
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Answer 1

Answer:

$\sqrt{40 + \sqrt{9 \sqrt{81} } } \\ \\ = \sqrt{40 + \sqrt{9 \sqrt{9 \times 9} } } \\ \\ = \sqrt{40 + \sqrt{9 \times 9} } \\ \\ = \sqrt{40 + 9 } \\ \\ = \sqrt{49} \\ \\ = \sqrt{7 \times 7} \\ \\ = 7$

hope it helps uH :)