Answer
$\sqrt[20] {x^9}$
Work Step by Step
Simplify. $\sqrt[4]{x}\sqrt[5]{x}$
As per definition of square root property,we have $(p)^{\frac{m}{n}}=\sqrt[n] {p^m}$
Therefore, $\sqrt[4]{x}\sqrt[5]{x}=(x)^{\frac{1}{4}}(x)^{\frac{1}{5}}=(x)^{\frac{1}{4}+\frac{1}{5}}=(x)^{\frac{9}{20}}$
Thus, the given radical term can be written as:$\sqrt[20] {x^9}$
