3 akar 12 dikurang akar 75 + 2 akar 27

3√12-√75+2√27 = 3√4.3 - √25.3 + 2√9.3
= 3.2√3 - 5√3 + 2.3√3
= 6√3 - 5√3 + 6√3
= 7√3