Tolong dijawab cuy …
1) 2√8 + 3 √32 = 2√4×2 + 3√16×2
= 4√2 + 12√2 = 16√2
2) 4√3 + 2√12 = 4√3 + 2√4×3
= 4√3 + 4√3 = 8√3
3) 4√45 – 5√5 = 4√9×5 – 5√5
= 12√5 – 5√5 = 7√5
4) 3√20 – 2√45 = 3√4×5 – 2√9×5
= 6√5 – 6√5 = 0
5) 6√80 – 2√175 = 6√16×5 – 2√25×7
= 24√5 – 10√7