Question

Express as a mixed surd: $\sqrt[4]{41280}$

• A. $5\sqrt[4]{45}$
  
• B. $4\sqrt[5]{54}$
• C. $4\sqrt[4]{45}$
• D. $4\sqrt[4]{410}$

Answer 1

Answer: (C)

$4\sqrt[4]{45}$

$\sqrt[4]{41280}=\sqrt[4]{44\times 4\times 4\times 4\times 5}=4\sqrt[4]{45}$

So the correct answer will be option C