(X - 1) ^ 3 = 8
(X - 1) ^ 3 = 2^3
X - 1 = 2
X = 3
Проверка:
(3 - 1)^3 = 2^3 = 8
(х+3)³=-8
(х+3)³+8=0
х+3=-2
х=-2-3
х=-5
(X - 1) ^ 3 = 8
(X - 1) ^ 3 = 2^3
X - 1 = 2
X = 3
Проверка:
(3 - 1)^3 = 2^3 = 8
(х+3)³=-8
(х+3)³+8=0
х+3=-2
х=-2-3
х=-5