Question

$\sqrt{72}$

Explanation:

Step1: Factor 72 into perfect square

$\sqrt{72} = \sqrt{36 \times 2}$

Step2: Separate the perfect square root

$\sqrt{36 \times 2} = \sqrt{36} \times \sqrt{2}$

Step3: Simplify the perfect square

$\sqrt{36} \times \sqrt{2} = 6\sqrt{2}$

Answer:

$6\sqrt{2}$ (or approximately 8.485 if a decimal value is needed)