Answer:
[tex]\large\boxed{\sqrt{x+3}=(x+3)^\frac{1}{2}}[/tex]
Step-by-step explanation:
[tex]\text{Use}\ a^\frac{1}{n}=\sqrt[n]{a}\\\\\sqrt{x+3}=\sqrt[2]{x+3}=(x+3)^\frac{1}{2}[/tex]