Evaluate - fourth root of 16

$- \sqrt[4]{16}$

Step 1

Rewrite $16$ as $2^{4}$ .

$- \sqrt[4]{2^{4}}$

Step 2

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

$- 1 \cdot 2$

Step 3

Multiply $- 1$ by $2$ .

$- 2$

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