Simplify :

`sqrt(3 )a + sqrt( 9 ) b + sqrt( 6 )`

Simplify 6sqrt(3)+ 5sqrt(12)

Simplify (sqrt(3)+2)(sqrt(3)-2)

Simplify : 2 /( sqrt(6) times sqrt(3) )

Simplify: (i) (2 sqrt(2) + 3 sqrt(3)) (2 sqrt(2) - 3 sqrt(3)) (ii) (2 sqrt(8) - 3 sqrt(2))^(2) (iii) (sqrt(7) + sqrt(6))^(2) (iv) (6 - sqrt(2))(2 + sqrt(3))

Simplify : 3sqrt(-16)-2sqrt(-9)+4sqrt(-36)

Simplify (a) (sqrt(8)-sqrt(6))^2 (b) (sqrt(5)-sqrt(8))^2

Simplify 6sqrt3+5sqrt12