3 akar 48 + akar 108 - 2 akar 147

20,78+10,39-24,24
=6.93
maaf kalo salah

3√48 + √108 - 2√147
=3√16.3 + √36.3 - 2√49.3
=3√4^2.3 + √6^2.3 - 2√7^2.3
=3(4)√3 + 6(2)√3 - 2(7)√3
=12√3 + 12√3 - 14√3
=24√3 - 14√3
=10√3.