Simplify `(sqrt5-2)/(sqrt5+2)-(sqrt5+2)/(sqrt5-2)`

Simplify: (sqrt(5)-2)/(sqrt(5)+2)-(sqrt(5)+2)/(sqrt(5)-2)

Simplify: (sqrt5-sqrt2)(sqrt2-sqrt3)

Simplify: (5+sqrt5)(5-sqrt5)

Simplify (3sqrt5-5sqrt2)(4sqrt5+3sqrt2)

2/(sqrt5 - sqrt3)

Simplify (sqrt5+sqrt2)^2

Simplify (2+sqrt3)/(sqrt5+sqrt2)

Simplify each of the following : (3)/(5-sqrt(3))+(2)/(5+sqrt(3)) (ii) (4+sqrt(5))/(4-sqrt(5))+(4-sqrt(5))/(4+sqrt(5))(sqrt(5)-2)/(sqrt(5)+2)-(sqrt(5)+2)/(sqrt(5)-2)

Simplify (sqrt5 - sqrt3)(sqrt5 + sqrt 3)

Simplify (5+sqrt(2))(3+sqrt(5))