Evaluate the following function for the input given below:

1. `f(5)` when `f (x) = (x^2-4+x)/(7x-6)`.

   `f(5)=`   s

2. `g(-6)` when `g (x) = (-2x^2+x-3(9-x))/(8.3-2x)`.

   `g(-6)=`  

3. `g(m)` when `g (x) = 2/3x-4x^3+x (x+4)`.

   `g(m)=`  

4. `f(x+1)` when `f (x) = 5x^2+6x-12`.

   `f(x+1)=`