Question

1. √75+ √8- (√32+√48)
2. 3^5/6 . 12^ 7/12 / 6^2/3 . 2^-1/4
3. Jika x= 2-√3 dan y=2+√3,nilai x2-y2+2xy=

Answer 1

1. 5√3 + 2√2 - (4√2 +4√3) = √3-2√2
2. tolong diperjelas lagi soalnya
3. (2-√3)² - (2+√3)² + 2(2-√3)(2+√3) 
    = (4-4√3+3) - (4+4√3+3) +2
    = 2 -8√3