Question

$sqrt[4]{8} + sqrt[4]{8} = ?$

Answer 1

$sqrt[4]{8} + sqrt[4]{8} =2 sqrt[4]{8}$

Answer 2

$sqrt[4]{8} + sqrt[4]{8} = sqrt[4]{ 2^{3} } + sqrt[4]{2^{3}} = 2^{ frac{3}{4} } + 2^{ frac{3}{4} } = 2 * 2^{ frac{3}{4} } = 2^{1+ frac{3}{4} } = 2^{ frac{7}{4} }$