f '(x) = 2 × 3x² - 3 × 2x - 12 * 1 - 0 = 6x² - 6x - 12
6x² - 6x - 12 = 0
D = 36 - 4 × 6 × (-12) = 36 + 288 = 324
√D = 18
ответ: 2; -1.
f '(x) = 2 × 3x² - 3 × 2x - 12 * 1 - 0 = 6x² - 6x - 12
6x² - 6x - 12 = 0
D = 36 - 4 × 6 × (-12) = 36 + 288 = 324
√D = 18
ответ: 2; -1.