Question

If f(x) = 3x + 4 and g(x) = 5 − x, what is the value of (f · g)(x)?

Answer 1

f(x)·g(x) = (3x +4)·(5 -x) = -3x^2 +11x +20

(f·g)(x) = -3x^2 +11x +20