Let's differentiate: (x5)' 5x4 Let's integrate: ∫(5x4)dx 5·x55 ℹ5·x55 = 5x55‖5x55 = x5 x5 Indefinite integrals are defined up to an additive constant C, so this yields: x5 + C ▷Answer: x5 + C, where C is a constant