Question

If f(x) = 2x² + 3 and g(x)=x2-7, find (f- g)(x).

Answer 1

Explanation:

arithmetic operations with functions just means to do these operations with the function expressions. and the result is the resulting function.

so,

(f - g)(x) = f(x) - g(x) = (2x² + 3) - (x² - 7) =

= 2x² + 3 - x² + 7 = x² + 10