Simplify square root of 18* square root of 2

$\sqrt{18} \cdot \sqrt{2}$

Combine using the product rule for radicals.

$\sqrt{18 \cdot 2}$

Write the expression using exponents.

Multiply $18$ by $2$ .

$\sqrt{36}$

Rewrite $36$ as $6^{2}$ .

$\sqrt{6^{2}}$

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

$6$