Sometimes people make mistakes when differentiating using the Chain Rule. Explain the mistakes in the work below. Then write the correct derivatives. Homework Help ✎

1. f(x) = −5(6x⁴ − 1)¹⁰ + π
   f ′(x) = −50(24x³ − 1)⁹

2. f(x) = sin(x² − x)
   f ′(x) = − cos(x² − x)