Single Choice

Express as a mixed surd: $$\sqrt [ 4 ]{ 1280 } $$

A$$5\sqrt [ 4 ]{ 5 } $$
B$$4\sqrt [ 5 ]{ 4 } $$
C$$4\sqrt [ 4 ]{ 5 } $$
Correct Answer
D$$4\sqrt [ 4 ]{ 10 } $$

Solution

$$\sqrt [ 4 ]{ 1280 } =\sqrt [ 4 ]{ 4\times 4\times 4\times 4\times 5 } =4\sqrt [ 4 ]{ 5 } $$
So the correct answer will be option C

SIMILAR QUESTIONS

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