Answer:
[tex]f(x)+g(x)=4x^{2}-4x-19[/tex]
Step-by-step explanation:
Replace both functions in the operation as follows:
[tex]f(x)+g(x)=(2x^{2} -4x-3)+(2x^{2} -16)\\ f(x)+g(x)=2x^{2} -4x-3+2x^{2} -16\\Reorganize\\f(x)+g(x)=2x^{2}+2x^{2} -4x-3-16\\Solve\\f(x)+g(x)=4x^{2}-4x-19[/tex]
Rdgs!