1. f ` (x) = 6x² - 2x
2. f ` (x) = 4x³ + 3x² + 2x + 4
3. f ` (x) = (x² - x + 5) + (2x - 1)(x+2) = x² - x + 5 + 2x² + 4x - x - 2 = 3x² + 2x + 3
1. f ` (x) = 6x² - 2x
2. f ` (x) = 4x³ + 3x² + 2x + 4
3. f ` (x) = (x² - x + 5) + (2x - 1)(x+2) = x² - x + 5 + 2x² + 4x - x - 2 = 3x² + 2x + 3