Question

f(x)=2x^2+1and g(x)=x^2-7, find (f-g)(x)

Answer 1

f(x) = 2x^2 + 1         g(x) = x^2 - 7

(f - g)(x) = 2x^2 + 1 - x^2 +7

            = x^2 + 8

The answer is:

(f - g)(x) = x^2 + 8