Question

if f(X)=x²-4x find f(1)+f(2)​

Answer 1

Answer:

f(x)= x square

f(1)= 1 square

= 1

f(2)= 2 square

= 4

Answer 2

f(1)=-3

f(2)=-4

-7 is your answer

To get f(1), put 1 in f(x) in place of x

And similarly get f(2)