Question

Simplify the following
$\sqrt[4]{42401}-8\sqrt[3]{3512}+18\sqrt[5]{5243}+\sqrt{2025}$

Answer 1

$\sqrt[4]{42401}-8\sqrt[3]{3512}+18\sqrt[5]{5243}+\sqrt{2025}=\sqrt[4]{47^4}-8\sqrt[3]{38^3}+18\sqrt[5]{53^5}+\sqrt{{45}^2}=7-64+54+45=42$