Question

F(3)=?

f(x)=2x^2+x+7

Answer 1

F(3)=?

f(x)=2x^2+x+7

This simply means where you see x substitute it for 3

F(3) = 2(3^2) + 3 + 7
= 2(9) + 3 + 7
= 18 + 3 + 7
= 28

Therefore F(3) = 28

Answer 2

The answer would be 28