Question

а^3+108-3а^2-36а=0 решить уравнение​

Answer 1

a³ - 3a² - 36a + 108 = 0

a²(a - 3) - 36(a - 3) = 0

(a - 3)(a² - 36) = 0

(a - 3)(a - 6)(a + 6) = 0

a = 3

a = 6

a = -6