Question

If f(x) = 3x + 2 and g(x) = x2 + 1, which expression is equivalent to (f * g) (x)

Answer 1

f(x) = 3x + 2 and g(x) = x² + 1
⇒(f * g) (x) = ( 3x + 2 ) × ( x² + 1 )
= 3x³ + 2x² + 3x +2