(x+2)куб=x куб+8 ПОМОГИТЕ НЕ МОГУ РЕШИТЬ
(x + 2)³ = x³ + 8 (x + 2)³ = (x + 2) • (x² - 2x + 4) (x + 2)³ - (x + 2) • (x² - 2x + 4) = 0 (x + 2) • ((x + 2)² - (x² - 2x + 4)) = 0 (x + 2) • ((x + 2)² - x² + 2x - 4) = 0 x + 2 = 0 (x + 2)² - x² + 2x - 4 = 0 x1 = -2 x2 = 0
Х^3+8=х^3+8 Х^3=8-8 Х^3=0