Write in Exponential Form 3 square root of x^4

$3 \sqrt{x^{4}}$

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x^{4}}$ as $x^{\frac{4}{2}}$ .

$3 x^{\frac{4}{2}}$

Divide $4$ by $2$ .

$3 x^{2}$

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