Evaluate the following function for the input given below:

1. `f(8)` when `f(x) = (x^2-3+x)/(6x-6)`.

   `f(8)=`   s

2. `g(-5.7)` when `g(x) = (-3x^2+1.6x-4(8-x))/(8-4x)`.

   `g(-5.7)=`  

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

   `g(m)=`  

4. `f(x+1)` when `f(x) = 2x^2+5x-15`.

   `f(x+1)=`