Question

If f(x)=3x^2+1 and g(x)=1-x, what is the value of (f-g)(2)

Answer 1

Step-by-step explanation:

Here, f(x)= 3x²+1

g(x)= 1-x²

Put x=2 in both function f(x) and g(x), we get f(2)=13 and g(2)= -3

Now, (f-g)(2) = f(2)-g(2) =13-(-3)=13+3=16

Hint: f(2) = 3×2²+1 = 3×4+1= 13