tolong dibantu ya beserta penjelasannya terimakasih

f(x) = 6x/(x²-9)
g(x) = √(3x)

(fog)(2) = f { g(2)} = f {√(3)(2) }= f(√6)
(fog)(2) = f(√6) =  [ 6√6  / (√6²- 9) ]
(fog)(2) = (6√6)/(6-9) = 6√6 /(-3)
(fog)(2) = - 2√6