Answer:
(f×g)(x) = 2x³ +x² -14x -7
Step-by-step explanation:
(f×g)(x) = f(x)×g(x) = (2x +1)×(x² -7)
= 2x(x² -7) +1(x² -7)
= 2x³ -14x +x² -7
