Let f(x)=2x+3 and g(x)=x^2-2x+1. perform the function operation and then find the domain of the result f(x)*g(x)

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)