Question

If f(X+1)+ f(7-X)=X²-2X-3, then f(4) is equal to?​

Answer 1

Answer:

Step-by-step explanation:if we put

x =3

Then,f(3+1)+f(7-3)=9-3*2-3

=0

Hence 2f(4)=0

f(4)=0