(x - 2) (x - 3) (x - 4) = (x - 2) (x - 3) (x - 5)
(x - 2) (x - 3) (x - 4) - (x - 2) (x - 3) (x - 5) = 0
(x - 2) (x - 3) * ( (x - 4) - (x - 5) ) = 0
(x - 2) (x - 3) * ( x - 4 - x + 5 ) = 0
x и - x взаимно уничтожаются
(x - 2) (x - 3) * 1 = 0
x - 2 = 0 ==> x = 2;
x - 3 = 0 ==> x = 3
ОТВЕТ:
2 , 3