Evaluate the following function for the input given below:
`f(6)` when `f (x) = (x^2-4+x)/(7x-5)`.
`f(6)=` s
`g(-4.3)` when `g (x) = (-3x^2+1.6x-3(9-x))/(8-2x)`.
`g(-4.3)=`
`g(m)` when `g (x) = 2/3x-7x^3+x (x+5)`.
`g(m)=`
`f(x+2)` when `f (x) = 5x^2+6x-12`.
`f(x+2)=`