Question

Pr matematika , , ,
1 .) √6 × √8 =
2.) 2√3 × 4√6 =
3.) √2(4√2-√6 =
4.) √3(2-5√3) =
5.) (√7+√5) (√7-√5) =
6.) (√7+√5)² =
7.) (√7-√5)² =
Tolong yahh gan :)

Answer 1

1. akar 48 = 4 akar 3
2. 8 akar 18 = 24 akar 2
3. 8 - 2 akar 3
4. 2 akar 3 - 15
5. (akar 7)^2 - (akar 5)^2 = 7-5 = 2
6. (akar 7)^2 + (2 akar 35) + (akar 5)^2 = 12+ 2 akar 35
7. (akar 7)^2 - (2 akar 35) + (akar 5)^2 = 12 - 2 akar 35