Simplify fourth root of a^16b^4

$\sqrt[4]{a^{16} b^{4}}$

Step 1

Rewrite $a^{16} b^{4}$ as ${(a^{4} b)}^{4}$ .

$\sqrt[4]{{(a^{4} b)}^{4}}$

Step 2

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

$a^{4} b$

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