" sinplyty: "(sqrt(3)+sqrt(5))(3-sqrt(5))

(sqrt(5)-2)(sqrt(3)-sqrt(5))

(sqrt(3)-sqrt(5))(sqrt(5)+sqrt(3))

(sqrt(3)-sqrt(5))(sqrt(5)+sqrt(3))

Rationales the denominator and simplify: (sqrt(3)-sqrt(2))/(sqrt(3)+sqrt(2)) (ii) (5+2sqrt(3))/(7+4sqrt(3)) (iii) (1+sqrt(2))/(3-2sqrt(2)) (2sqrt(6)-sqrt(5))/(3sqrt(5)-2sqrt(6)) (v) (4sqrt(3)+5sqrt(2))/(sqrt(48)+sqrt(18)) (vi) (2sqrt(3)-sqrt(5))/(2sqrt(3)+3sqrt(3))

(2sqrt3+sqrt5)(2sqrt3+sqrt5)

Simplify (sqrt3+sqrt5)(sqrt3-sqrt5)

(sqrt(5)+sqrt(3))(sqrt(5)-sqrt(3))

(2sqrt3 + sqrt5)(2sqrt3 - sqrt5)

(sqrt3-sqrt5)(sqrt5+sqrt3)

simplify (sqrt(5)+sqrt(3))/(sqrt(5)-sqrt(3))-(sqrt(5)-sqrt(3))/(sqrt(5)+sqrt(3))