Question

Operasi aljabar dalam bentuk akar
Sederhanakan!
1. 3√50 + √128
2. 7√5 - √125
3. 3√5 + 6√2 + √32
4. 2√28 + √20 + √125
5. √6 + √72 - 3√32

Answer 1

1. 3√25×2 + √64×2
= 3 × 5√2 + 8√2
= 15√2 + 8√2
= 23√2

2. 7√5 - √25×5
= 7√5 - 5√5
= 2√5

3. 3√5 + 6√2 + √16×2
= 3√5 + 6√2 + 4√2
= 3√5 + 10√2

4.2√4×7 + √4×5 + √25×5
= 2 × 2√7 + 2√5 + 5√5
= 4√7 + 7√5

5. √6 + √36×2 - 3√16×2
= √6 + 6√2 - 3 × 4√2
= √6 + 6√2 - 12√2
= √6 - 6√2