Answer
$3$
Work Step by Step
Simplify. $\sqrt[3]{\sqrt [4]{16}+\sqrt{625}}$
or, $=\sqrt[3]{\sqrt [4]{2^4}+\sqrt{25 \cdot 25}}$
or, $=\sqrt[3]{2+25}$
or, $=\sqrt[3]{27}$
or, $=\sqrt[3]{3^3}$
or, $=3$
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