Simplify `(sqrt7-sqrt5)/(sqrt7-sqrt5)`

Simplify (sqrt3+sqrt5)(sqrt3-sqrt5)

Simplify (sqrt3-sqrt5)(sqrt5+sqrt3)

Simplify (sqrt(7)-sqrt(5))/(sqrt(7)+sqrt(5))+sqrt(35)

Simplify (2/7-5/sqrt7)/(sqrt7-1/sqrt7)

Simplify (sqrt(7)+sqrt(2))(sqrt(7)-sqrt(2))

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

Simplify (3+sqrt5)/(sqrt7-sqrt3)

show that (sqrt(7)-sqrt(5))/(sqrt(7)+sqrt(5))times(sqrt(7)-sqrt(5))/(sqrt(7)-sqrt(5)) =frac{(sqrt(7)-sqrt(5))^(2)}{2}

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

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