Question

This is maths question and I want to know it's answer fast

Answer 1

√147=√49×3=7√3
√108=√36×3=6√3
√147-√108-√3=7√3-6√3-√3
=7√3-7√3
=0

Answer 2

$\sqrt{147} - \sqrt{108} - \sqrt{3} \\ \sqrt{144} - \sqrt{108} \\ \sqrt{36} \\ 6$
HOPE IT'S CORRECT