Question

Caranya juga yh
1. akar6 x akar3 =
2. akar2 ( 4 akar3 + akar24)
3. ( akar5 + akar2) (akar5 - akar2)
4. ( 6 akar2 + akar5) ( akar2 - 2 akar5)
5. 3 akar2 ( akar3 - akar2)
6. akar 8 per akar2
7. 2 akar3 x 3 akar2 per 12 akar6

Answer 1

1. √6 x √3 = √18 = √9 x √2 = 3√2
2. √2 x (4√3 + √24) = 4√6 + 2√24 = 4√6 + 4√6 = 8√6
3. (√5 + √2 ) (√5 - √2 ) = √25 -√4 = 5-2 = 3
4. (6√2 + √5 ) (√2 - 2√5) = 12 - 12√10 + √10 - 10 = 2 - 11√2
5. 3√2 (√3-√2) = 3√6 - 6
6. √8 / √2 = √16 / 2 = 4/2 = 2
7. 2√3 x 3√3 / 12√6 = 6√9/12√6 = (6√9 x 12√6)/12 x 6 = 72√54/72 = √54 = 3√6

Answer 2

1. √6 × √3 = √18 = √9 × 2 = 3√2
2. √2 × ( 4√3 + √24) = 4√6 + √48 = 4√6 + 4 √3
3. (√5 + √2)(√5- √2) = 5 - √10 + √10 - 2 = 5-2 = 3
4. (6√2 + √5)( √2 - 2√5) = 12 - 12√10 + √10 - 10 = 12-10-11√10 = 2-11√10
5. 3√2 ( √3 - √2) = 3√6 - 3√4
6. √8 / √2
= √8/√2 × √2/√2
= √16/2 = 4/2 = 2
7. 2√3 × 3√2/ 12√6
= 2√3 . 3√2/ 12√6 × 12√6/12√6
= 432/864 = 1/2