Question

Решите уравнение (x−3)(x−4)(x−5)=(x−2)(x−4)(x−5).

Answer 1

(x−3)(x−4)(x−5)=(x−2)(x−4)(x−5)
(x−3)(x−4)(x−5)-(x−2)(x−4)(x−5)=0
(x−4)(x−5)(x−3-x+2)=0
-1(x−4)(x−5)=0
(x−4)(x−5)=0
x−4=0 или x−5=0
х=4 или х=5