Simplify fourth root of x^20y^28

$\sqrt[4]{x^{20} y^{28}}$

Step 1

Rewrite $x^{20} y^{28}$ as ${(x^{5} y^{7})}^{4}$ .

$\sqrt[4]{{(x^{5} y^{7})}^{4}}$

Step 2

Pull terms out from under the radical, assuming positive real numbers.

$x^{5} y^{7}$

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