tolong ya kak,dengan cara nya

2√3x18:2= 2√54:2= 2 √27= 6√ 3

2√3 × √18 : √2
= 2√3 × √(9 × 2) : √2
= 2√3 × √9 × √2 : √2
= 2√3 × 3 × 1
= 2 × 3 × √3
= 6√3