Question

simplify.
\sqrt{80}

Explanation:

Step1: Factor out perfect square

$\sqrt{80} = \sqrt{16 \times 5}$

Step2: Split the square root

$\sqrt{16 \times 5} = \sqrt{16} \times \sqrt{5}$

Step3: Simplify perfect square root

$\sqrt{16} \times \sqrt{5} = 4\sqrt{5}$

Answer:

$4\sqrt{5}$